Quantum Optics Group

Ray-Kuang Lee's group   National Tsing Hua University, Taiwan
國立清華大學   李瑞光    量子光學實驗室


With AMO (Atom-Molecular-Optics) and photonics as a versatile platform, the Quantum Optics Group is focusing

Quantum Physics: the duality of wave and particle, generation of quantum noise squeezed states, quantum state tomography, and the dilation of quantum mechanics.

Quantum Technology: quantum metrology, quantum photonic chips, quantum-enhanced precision measurement, and the gravitational wave detectors.

目前,量子光學實驗室著重於波和粒子對偶性的研究, 量子噪音壓縮態的產生量子態斷層掃描量子度量,與 量子力學的擴充。此外研究主題也包含量子光學晶片的實現量子加強精密測量,與重力波探測器


What is New !



Laser Fest 60 雷射60周年: 雷射大未來:敲開量子世界大門的雷射”. 專訪清華大學光電工程研究所李瑞光教授.
Nature isn't classical, dammit, and if you want to make a simulation of nature, you'd better make it quantum mechanical, and by golly it's a wonderful problem, because it doesn't look so easy.
—— Richard Feynman  [link]


Congratulations to Anandu (the 3rd guy from the right, in the first row):
He and his team, on the "Quantum simulation of one-dimensional systems on IBM-Q device", won the 2nd Prize in the 2020 Qiskit Hackathon Taiwan (量子黑客松).

本實驗室獲選“科技部全球事務與科學發展中心: 亮點實驗室”.
Quantum Optics Laboratory is selected as one of the Highlight Laboratories, by the MOST Center for Global Affairs and Science Engagement, GASE


[Position Open] Long-term Postdoc position on Quantum Optics and Nonlinear Dynamics open (up to 3 years).

Currently, 3 Postdoctoral Fellows in Quantum Optics Group


[Position Open] Vacancy for PhD students in Photonics and Physics.

Currently, 7 PhD students in Quantum Optics Group.

[Position Open] Vacancy for Master students in Photonics and Physics.

Currently, 3 Master students in Quantum Optics Group.


[149] Jeng Yi Lee, Lujun Huang, Lei Xu, Andrey E. Miroshnichenko, and RKL, "Broadband Control on Scattering Events with Interferometric Coherent Waves," revised to ACS Photonics (Sep. 2020).[arXiv: 2003.00252].

[148] D. V. Tsarev, A. P. Alodjants, T. V. Ngo, and RKL, "Mesoscopic quantum superposition states of weakly-coupled matter-wave solitons," revised to New J. Phys. (Aug. 2020); .

[147] Li-Yi Hsu, Ching-Yi Lai, You-Chia Chang, Chien-Ming Wu, and RKL, "Carrying an arbitrarily large amount of information using a single quantum particle," Phys. Rev. A 102, 022620 (2020); [download].

[146] Hang Yu, En Guo Guan, Gang Wang, Jian Hua Jiang, Jun Hu, Jin Hui Wu, and RKL, "Synthesizing quantum spin Hall phase for ultracold atoms in bichromatic chiral optical ladders," Optics Express 28, 21072 (2020) [download];

[145] The LIGO Scientific Collaboration, the Virgo Collaboration, and the KAGRA collaboration, "Prospects for Observing and Localizing Gravitational-Wave Transients with Advanced LIGO, Advanced Virgo and KAGRA," Living Reviews in Relativity (accepted, May 2020); [arXiv: 1304.0670].

[144] The KAGRA collaboration, "Overview of KAGRA: Detector design and construction history," Prog. Theo. Exp. Phys. (PTEP) (accepted, 2020); [arXiv: 2005.05574].

[143] The KAGRA collaboration, "Overview of KAGRA : KAGRA science," Prog. Theo. Exp. Phys. (PTEP) (accepted, 2020); [arXiv: 2008.02921]

[142] The KAGRA collaboration, "Application of independent component analysis to the iKAGRA data," Prog. Theo. Exp. Phys. (PTEP) 2020, 053F01 (2020); [download].


 

[141] Yuhang Zhao, Naoki Aritomi, Eleonora Capocasa, Matteo Leonardi, Marc Eisenmann, Yuefan Guo, Eleonora Polini, Akihiro Tomura, Koji Arai, Yoichi Aso, Yao-Chin Huang, RKL, Harald Luck, Osamu Miyakawa, Pierre Prat, Ayaka Shoda, Matteo Tacca, Ryutaro Takahashi, Henning Vahlbruch, Marco Vardaro, Chien-Ming Wu, Matteo Barsuglia, and Raffaele Flaminio, "Frequency-dependent squeezed vacuum source for broadband quantum noise reduction in advanced gravitational-wave detectors," Phys. Rev. Lett. 124, 171101 (2020) [download];   Editors' Suggestion; Featured in Physics [download].

[140] Raul A. Robles Robles and RKL, "Quantum phase transition of a finite number of atoms in electromagnetically induced transparency media," J. Opt. Soc. Am. B 37, 1388 (2020) [download].

[139] Chun-Yan Lin, Jen-Hsu Chang, Gershon Kurizki, and RKL, "Solitons supported by intensity-dependent dispersion," Opt. Lett. 45, 1471 (2020) [download].


[138] Alexey A. Melonikov, Leonid E. Fedichkin, RKL, and Alexander Alodjants, "Machine learning transfer efficiencies for noisy quantum walks," Adv. Quant. Tech. 3,1900115 (2020) [download]; also selected as the Back Cover for Adv. Quant. Tech. April issue (2020).


[137] The KAGRA collaboration, "An arm length stabilization system for KAGRA and future gravitational-wave detectors," Class. Quantum Grav. 37, 035004 (2020) [download].


[150] You-Lin Chuang, RKL, and Ite A. Yu, "Generation of quantum entanglement based on electromagnetically induced transparency media," submitted for publication (Jun. 2019); [arXiv: 1906.12025].

[151] Hai Wang, RKL, and Junde Wu, "Discrete-time modeling of quantum evolutions, the energy-time uncertainty relation and general extensions in the entangled history formalism," submitted for publication (Aug. 2019).[arXiv: 1908.02935].

[152] Hai Wang, RKL, Manish Kumar Shukla, Indranil Chakrabarty, Shaoming Fei, and Junde Wu, "Quantum Channels as Temporal Correlations in Quantum Mechanics," submitted for publication (Oct. 2019); [arXiv: 1910.05694].

[153] Jen-Hsu Chang, Chun-Yan Lin, and RKL, "Nonlinear Effective Masses Schrodinger Equation with Harmonic Oscillator," submitted for publication (Nov. 2019); [arXiv: 1911.12477].

[154] Chun-Yan Lin, Giulia Marcucci, You-Lin Chuang, Gang Wang, Claudio Conti, and RKL, "Multidimensional topological strings by curved potentials: Simultaneous realization of mobility edge and topological protection," submitted for publication (Feb. 2020); [arXiv: 2002.03091].

[155] Yu-Han Chang, Raul A. Robles Robles, Vanna Chrismas Silalahi, Cen-Shawn Wu, Gang Wang, Giulia Marcucci, Laura Pilozzi, Claudio Conti, RKL, and Watson Kuo, "Direct Observation of Topological Protected Edge States in Slow-Light," submitted for publication (Apr. 2020); [arXiv: 2004.09282].

[156] Jayanta Bera, Suranjana Ghosh, RKL, and Utpal Roy, " Theoretical scheme for quantum sensing in trapped ultracold atoms," submitted for publication (Sep. 2020).

[157] Minyi Huang, RKL, and Junde Wu, "The internal nonlocality in PT-symmetry systems," submitted for publication (Sep. 2020); [arXiv: 2009.06121].

Research Highlight:

Quantum Noise Squeezing
量子噪音壓縮

"Detection of 10 dB vacuum noise squeezing at 1064 nm by balanced homodyne detectors with a common mode rejection ratio more than 80 dB,"
CLEO 2019, paper JTu2A.38.
Download  More

Gravitational Wave Detectors
重力波探測器

"Frequency-dependent squeezed vacuum source for broadband quantum noise reduction in advanced gravitational-wave detectors,"
Editors' Suggestion; Featured in Physics: Feeling the Squeeze at All Frequencies.  [link]
Phys. Rev. Lett. 124, 171101 (2020).
Download  More

Quantum Machine Learning
量子機器學習

"Machine learning transfer efficiencies for noisy quantum walks,"
Back Cover for Adv. Quantum Technol. 4/2020.  [link]
Adv. Quant. Tech. 1900115 (2020).
Download  More

Quantum Solitons 量子孤子

"Entangled Quantum Nonlinear Schrodinger Solitons,"
Phys. Rev. Lett. 103, 013902 (2009).
Download

"Amplitude-squeezed fiber-Bragg-grating solitons,"
Phys. Rev. A 69, 021801(R) (2004).
Download  More

Quantum Phase Space
相空間量子光學

"The Wigner flow on the sphere,"
Physica Scripta 94, 044001 (2019).
Download

"Direct measurement of time-frequency analogs of sub-Planck structures,"
Phys. Rev. A 93, 053835 (2016).
Download  More

Dilation of quantum mechanics
量子力學的擴展

"Simulating broken PT-symmetric Hamiltonian systems by weak measurement,"
Phys. Rev. Lett. 123, 080404 (2019).
Download

"Local PT symmetry violates the no-signaling principle,"
Editors' Suggestion; Featured in Physics: Reflecting on an Alternative Quantum Theory.  [link]
Phys. Rev. Lett. 112, 130404 (2014).
Download  More

Topological Photonics
拓墣光電

"Topological Control of Extreme Waves,"
Highlight by Nature Phys. 15, 1210 (2019): Tamed by Topology.  [link]
Nature Comm. 10, 5090 (2019).
Download  More

Wave Localization 波局域化

"Crescent Waves in Optical Cavities,"
Phys. Rev. Lett. 107, 183902 (2011).
Download

"Surface-Structure-Assisted Chaotic Mode Lasing in Vertical Cavity Surface Emission Lasers,"
Phys. Rev. Lett. 101, 084101 (2008).
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Pattern Formation
光學圖案形成

"Resonance in modulation instability from non-instantaneous nonlinearities,"
Opt. Lett. 43, 3329 (2018).
Download

"Optical Pattern Transitions from Modulation to Transverse Instabilities in Photorefractive Crystals,"
Phys. Rev. Lett. 102, 153905 (2009).
Download  More

Wave Scattering 波散射

"Phase diagram for passive electromagnetic scatterers,"
SPIE Newsroom May 2017: Phase diagram for investigating the scattering properties of passive scatterers.  [link]
Optics Express 24, 6480 (2016).
Download  More

Quantum Invisible Cloak
量子隱形斗篷

"Hiding the interior region of core-shell nano-particles with quantum invisible cloaks,"
Physics Today News Picks: Invisibility cloaks theorized to work for quantum effects.  [link-1];
MIT Technology Review / ExtremeTech: Quantum Invisibility Cloak Hides Objects from Reality.  [link-2] [link-3]

Phys. Rev. B 89, 155425 (2014).
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Quantum Phase Transitions of Light 光的量子相變

"Quantum Phase Transitions of Light in the Dicke-Bose-Hubbard model,"
Optics and Photonics News: Optics in 2008: Quantum Phase Transitions of Light for Two-level Atoms.  [link]
Phys. Rev. A 77, 033827 (2008).
Download  More


People

Prof. Dr. Ray-Kuang Lee (李瑞光)

Group Head


Group Members


[11] The KAGRA collaboration, "Overview of KAGRA: Detector design and construction history," Prog. Theo. Exp. Phys. (PTEP) (accepted, 2020); [arXiv: 2005.05574].

[10] The KAGRA collaboration, "Overview of KAGRA : KAGRA science," Prog. Theo. Exp. Phys. (PTEP) (accepted, 2020).

[9] Li-Yi Hsu, Ching-Yi Lai, You-Chia Chang, Chien-Ming Wu, and RKL, "Carrying an arbitrarily large amount of information using a single quantum particle," Phys. Rev. A 102, 022620 (2020); [download].

[8] The LIGO Scientific Collaboration, the Virgo Collaboration, and the KAGRA collaboration, "Prospects for Observing and Localizing Gravitational-Wave Transients with Advanced LIGO, Advanced Virgo and KAGRA," Living Reviews in Relativities (accepted, May 2020); [arXiv: 1304.0670].

[7] The KAGRA collaboration, "Application of independent component analysis to the iKAGRA data," Prog. Theo. Exp. Phys. (PTEP) 2020, 053F01 (2020); [download].




[6] Yuhang Zhao, Naoki Aritomi, Eleonora Capocasa, Matteo Leonardi, Marc Eisenmann, Yuefan Guo, Eleonora Polini, Akihiro Tomura, Koji Arai, Yoichi Aso, Yao-Chin Huang, RKL, Harald Luck, Osamu Miyakawa, Pierre Prat, Ayaka Shoda, Matteo Tacca, Ryutaro Takahashi, Henning Vahlbruch, Marco Vardaro, Chien-Ming Wu, Matteo Barsuglia, and Raffaele Flaminio, "Frequency-dependent squeezed vacuum source for broadband quantum noise reduction in advanced gravitational-wave detectors," Phys. Rev. Lett. 124, 171101 (2020) [download];   Editors' Suggestion; Featured in Physics [download].

[5] The KAGRA collaboration, "An arm length stabilization system for KAGRA and future gravitational-wave detectors," Class. Quantum Grav. 37, 035004 (2020) [download].

[4] Ray-Ching Hong, Chun-Yan Lin, You-Lin Chuang>, Chien-Ming Wu, Yonan Su, Jeng Yi Lee, Chien-Chung Jeng, Ming-Feng Shih, and RKL, "Resonance in modulation instability from non-instantaneous nonlinearities," Opt. Lett. 43, 3329 (2018) [download].

[3] Kou-Bin Hong, Chun-Yan Lin, Tsu-Chi Chang, Wei-Hsuan Liang, Ying-Yu Lai, Chien-Ming Wu, You-Lin Chuang, Tien-Chang Lu, Claudio Conti, and RKL, "Lasing on nonlinear localized waves in curved geometry," Optics Express 25, 29068 (2017) [download].

[2] Xing-You Chen, You-Lin Chuang, Chun-Yan Lin, Chien-Ming Wu, Yongyao Li, Boris A. Malomed, and RKL, "Magic tilt angle for stabilizing two-dimensional solitons by dipole-dipole interactions," Phys. Rev. A 96, 043631 (2017) [download].



[1] Chien-Ming Wu, Tze-Wei Liu, Ming-Hsuan Wu, RKL, and Wang-Yau Cheng, "Absolute frequency of cesium 6S–8S 822 nm two-photon transition by a high-resolution scheme," Opt. Lett. 38, 3186 (2013) [download]; selected for Spotlight on Optics.





[3] The KAGRA collaboration, "Overview of KAGRA: Detector design and construction history," Prog. Theo. Exp. Phys. (PTEP) (accepted, 2020); [arXiv: 2005.05574].

[2] The KAGRA collaboration, "Overview of KAGRA : KAGRA science," Prog. Theo. Exp. Phys. (PTEP) (accepted, 2020).

[1] Yuhang Zhao, Naoki Aritomi, Eleonora Capocasa, Matteo Leonardi, Marc Eisenmann, Yuefan Guo, Eleonora Polini, Akihiro Tomura, Koji Arai, Yoichi Aso, Yao-Chin Huang , RKL, Harald Luck, Osamu Miyakawa, Pierre Prat, Ayaka Shoda, Matteo Tacca, Ryutaro Takahashi, Henning Vahlbruch, Marco Vardaro, Chien-Ming Wu, Matteo Barsuglia, and Raffaele Flaminio, "Frequency-dependent squeezed vacuum source for broadband quantum noise reduction in advanced gravitational-wave detectors," Phys. Rev. Lett. 124, 171101 (2020) [download];   Editors' Suggestion; Featured in Physics [download].


[7] Jen-Hsu Chang, Chun-Yan Lin, and RKL, "Nonlinear Effective Masses Schrodinger Equation with Harmonic Oscillator," submitted for publication (Aug. 2019); [arXiv: 1911.12477].

[6] Chun-Yan Lin, Giulia Marcucci, You-Lin Chuang, Gang Wang, Claudio Conti, and RKL, "Multidimensional topological strings by curved potentials: Simultaneous realization of mobility edge and topological protection," submitted for publication (Feb. 2020); [arXiv: 2002.03091].

[5] Chun-Yan Lin, Jen-Hsu Chang, Gershon Kurizki, and RKL, "Solitons supported by intensity-dependent dispersion," Opt. Lett. 45, 1471 (2020) [download].

[4] Ray-Ching Hong, Chun-Yan Lin, You-Lin Chuang, Chien-Ming Wu, Yonan Su, Jeng Yi Lee, Chien-Chung Jeng, Ming-Feng Shih, and RKL, "Resonance in modulation instability from non-instantaneous nonlinearities," Opt. Lett. 43, 3329 (2018) [download].

[3] Xing-You Chen, You-Lin Chuang, Chun-Yan Lin, Chien-Ming Wu, Yongyao Li, Boris A. Malomed, and RKL, "Magic tilt angle for stabilizing two-dimensional solitons by dipole-dipole interactions," Phys. Rev. A 96, 043631 (2017) [download].

[2] Kou-Bin Hong, Chun-Yan Lin, Tsu-Chi Chang, Wei-Hsuan Liang, Ying-Yu Lai, Chien-Ming Wu, You-Lin Chuang, Tien-Chang Lu, Claudio Conti, and RKL, "Lasing on nonlinear localized waves in curved geometry," Optics Express 25, 29068 (2017) [download].

[1] Yonan Su, Chun-Yan Lin, Ray-Ching Hong, Wen-Xing Yang, Chien-Chung Jeng, Tien-Chang Lu, and RKL, "Lasing on surface states in vertical-cavity surface-emission lasers," Opt. Lett. 39, 5582 (2014) [download].

Mr. Raul A. Robles-Robles

[3] Yu-Han Chang, Raul A. Robles Robles, Vanna Chrismas Silalahi, Cen-Shawn Wu, Gang Wang, Giulia Marcucci, Laura Pilozzi, Claudio Conti, RKL, and Watson Kuo, "Direct Observation of Topological Protected Edge States in Slow-Light," submitted for publication (Apr. 2020); [arXiv: 2004.09282].

[2] Raul A. Robles Robles and RKL, "Quantum phase transition of a finite number of atoms in electromagnetically induced transparency media," J. Opt. Soc. Am. B 37, 1388 (2020) [download].

[1] Raul A. Robles Robles, S. A. Chilingaryan, B. M. Rodriguez-Lara, and RKL, "Ground state in the finite Dicke model for interacting qubits," Phys. Rev. A 91, 033819 (2015); Images also selected as the Kaleidoscope in Phys. Rev. A [download].

Mr. Hsien-Yi Hsieh (謝憲毅)



Mr. Hsun-Chun Wu (吳訓忠)


[5] The KAGRA collaboration, "Overview of KAGRA: Detector design and construction history," Prog. Theo. Exp. Phys. (PTEP) (accepted, 2020); [arXiv: 2005.05574].

[4] The KAGRA collaboration, "Overview of KAGRA : KAGRA science," Prog. Theo. Exp. Phys. (PTEP) (accepted, 2020).

[3] The LIGO Scientific Collaboration, the Virgo Collaboration, and the KAGRA collaboration, "Prospects for Observing and Localizing Gravitational-Wave Transients with Advanced LIGO, Advanced Virgo and KAGRA," Living Reviews in Relativities (accepted, May 2020); [arXiv: 1304.0670].

[2] The KAGRA collaboration, "Application of independent component analysis to the iKAGRA data," Prog. Theo. Exp. Phys. (PTEP) 2020, 053F01 (2020); [download].

[1] The KAGRA collaboration, "An arm length stabilization system for KAGRA and future gravitational-wave detectors," Class. Quantum Grav. 37, 035004 (2020) [download].

Miss Yi-Ru Chen (陳奕如)


[5] The KAGRA collaboration, "Overview of KAGRA: Detector design and construction history," Prog. Theo. Exp. Phys. (PTEP) (accepted, 2020); [arXiv: 2005.05574].

[4] The KAGRA collaboration, "Overview of KAGRA : KAGRA science," Prog. Theo. Exp. Phys. (PTEP) (accepted, 2020).

[3] The LIGO Scientific Collaboration, the Virgo Collaboration, and the KAGRA collaboration, "Prospects for Observing and Localizing Gravitational-Wave Transients with Advanced LIGO, Advanced Virgo and KAGRA," Living Reviews in Relativities (accepted, May 2020); [arXiv: 1304.0670].

[2] The KAGRA collaboration, "Application of independent component analysis to the iKAGRA data," Prog. Theo. Exp. Phys. (PTEP) 2020, 053F01 (2020); [download].

[1] The KAGRA collaboration, "An arm length stabilization system for KAGRA and future gravitational-wave detectors," Class. Quantum Grav. 37, 035004 (2020) [download].

Miss Hua Li Chen (陳華麗)

[1] Hua Li Chen, Gang Wang, and RKL, "Nearly complete survival of an entangled biphoton through bound states in continuum in disordered photonic lattices," Optics Express 26, 33205 (2018) [download].

Mr. Anandu Kalleri Madhu



Mr. Dipanshu Sharma




[3] Popo Yang, Ivan F. Valtierra, Andrei B. Klimov, Shin-Tza Wu, RKL, and Luis L. Sanchez-Soto, and Gerd Leuchs, "The Wigner flow on the sphere," Physica Scripta 94, 044001 (2019); for the New Focus issue: Quantum Optics and Beyond- in honour of Wolfgang Schleich [download].

[2] Ludmila Praxmeyer, Chih-Cheng Chen, Popo Yang, Shang-Da Yang, and RKL, "Direct measurement of time-frequency analogs of sub-Planck structures," Phys. Rev. A 93, 053835 (2016) [download].

[1] Ludmila Praxmeyer, Popo Yang, and RKL, "Phase-space representation of a non-Hermitian system with PT-symmetry," Phys. Rev. A 93, 042122 (2016) [download].


[21] You-Lin Chuang, RKL, and Ite A. Yu, "Generation of quantum entanglement based on electromagnetically induced transparency media," submitted for publication (April 2020); [arXiv: 1906.12025].

[20] Chun-Yan Lin, Giulia Marcucci, You-Lin Chuang, Gang Wang, Claudio Conti, and RKL, "Multidimensional topological strings by curved potentials: Simultaneous realization of mobility edge and topological protection," submitted for publication (Feb. 2020); [arXiv: 2002.03091].

[19] Ray-Ching Hong, Chun-Yan Lin, You-Lin Chuang, Chien-Ming Wu, Yonan Su, Jeng Yi Lee, Chien-Chung Jeng, Ming-Feng Shih, and RKL, "Resonance in modulation instability from non-instantaneous nonlinearities," Opt. Lett. 43, 3329 (2018) [download].

[18] You-Lin Chuang, Ziauddin, and RKL, "Realization of simultaneously parity-time-symmetric and parity-time-antisymmetric susceptibilities along the longitudinal direction in atomic systems with all optical controls," Optics Express 26, 21969 (2018) [download];

[17] D. V. Tsarev, S. M. Arakelian, You-Lin Chuang, RKL, and A. P. Alodjants, "Quantum metrology beyond Heisenberg limit with entangled matter wave solitons," Optics Express 26, 19583 (2018) [download].

[16] Rahmatullah, Ziauddin, You-Lin Chuang, RKL, and Sajid Qamar, "Sub-microwave wavelength localization of Rydberg superatoms," J. Opt. Soc. Am. B 35, 2588 (2018) [download].

[15] Rahmatullah, You-Lin Chuang, RKL, and Sajid Qamar, "3D atom microscopy in the presence of Doppler shift," Laser Phys. Lett. 15, 035202 (2018) [download];

[14] You-Lin Chuang, RKL, and Ite A. Yu, "Optical-density-enhanced squeezed-light generation without optical cavities," Phys. Rev. A 96, 053818 (2017) [download].

[13] Xing-You Chen, You-Lin Chuang, Chun-Yan Lin, Chien-Ming Wu, Yongyao Li, Boris A. Malomed, and RKL, "Magic tilt angle for stabilizing two-dimensional solitons by dipole-dipole interactions," Phys. Rev. A 96, 043631 (2017) [download].

[12] Kou-Bin Hong, Chun-Yan Lin, Tsu-Chi Chang, Wei-Hsuan Liang, Ying-Yu Lai, Chien-Ming Wu, You-Lin Chuang, Tien-Chang Lu, Claudio Conti, and RKL, "Lasing on nonlinear localized waves in curved geometry," Optics Express 25, 29068 (2017) [download].

[11] Ziauddin, You-Lin Chuang, and RKL, "PT-symmetry in Rydberg atoms," EuroPhys. Lett. 115, 14005 (2016) [download].

[10] Ziauddin, You-Lin Chuang, Sajid Qamar, and RKL, "Goos-Hanchen shift of partially coherent light fields in epsilon-near-zero metamaterials," Sci. Rep. 6, 26504 (2016) [download].

[9] Ziauddin, You-Lin Chuang, RKL, and Sajid Qamar, "Coherent control of the group velocity in a dielectric slab doped with duplicated two-level atoms," Laser Phys. 26, 015205 (2016) [download].

[8] Yi-Chan Lee, Jibing Liu, You-Lin Chuang, Min-Hsiu Hsieh, and RKL, "Passive PT-symmetric couplers without complex optical potentials," Phys. Rev. A 92, 053815 (2015) [download].

[7] Ziauddin, You-Lin Chuang, and RKL, "Giant Goos-Hanchen shift using PT-symmetry," Phys. Rev. A 92, 013815 (2015) [download].

[6] You-Lin Chuang, Ite A. Yu, and RKL, "Quantum theory for pulse propagation in electromagnetically-induced-transparency media beyond the adiabatic approximation," Phys. Rev. A 91, 063818 (2015) [download].

[5] Ziauddin, You-Lin Chuang, and RKL, "Negative and positive Goos-Hanchen shifts of partially coherent light fields," Phys. Rev. A 91, 013803 (2015) [download].

[4] You-Lin Chuang, Ite A. Yu, and RKL, "Nonseparated states from squeezed dark-state polaritons in electromagnetically induced transparency media," J. Opt. Soc. Am. B 32, 1384 (2015) [download].

[3] E. S. Sedov, A. P. Alodjants, S. M. Arakelian, You-Lin Chuang, YuanYao Lin, Wen-Xing Yang, and RKL, "Tunneling-assisted optical information storage with lattice polariton solitons in cavity-QED arrays," Phys. Rev. A 89, 033828 (2014) [download].

[2] Shaopeng Liu, Wen-Xing Yang, You-Lin Chuang, Ai-Xi Chen, Ang Liu, Yan Huang, and RKL, "Enhanced four-wave mixing efficiency in four-subband semiconductor quantum wells via Fano-type interference," Optics Express 22, 29179 (2014) [download].

[1] You-Lin Chuang and RKL, "Conditions to preserve quantum entanglement of quadrature fluctuation fields in electromagnetically induced transparency media," Opt. Lett. 34, 1537 (2009); also selected in Virtual Journal of Quantum Information 9, Issue 6 (2009) [download]

[13] Jeng Yi Lee, Lujun Huang, Lei Xu, Andrey E. Miroshnichenko, and RKL, "Broadband Control on Scattering Events with Interferometric Coherent Waves," submitted for publication (Mar. 2020).[
arXiv: 2003.00252].

[12] Jeng Yi Lee, Yueh-Heng Chung, Andrey E. Miroshnichenko, and RKL, "Linear control of light scattering with multiple coherent waves excitation," Opt. Lett. 44, 5310 (2019) [download].

[11] Ray-Ching Hong, Chun-Yan Lin, You-Lin Chuang, Chien-Ming Wu, Yonan Su, Jeng Yi Lee, Chien-Chung Jeng, Ming-Feng Shih, and RKL, "Resonance in modulation instability from non-instantaneous nonlinearities," Opt. Lett. 43, 3329 (2018) [download].

[10] Jeng Yi Lee, Andrey E. Miroshnichenko, and RKL, "Simultaneously nearly zero forward and nearly zero backward scattering objects," Optics Express 26, 30393 (2018) [download].

[9] Jeng Yi Lee and RKL, "Exploring matter wave scattering by means of the phase diagram," EuroPhys. Lett. 124, 30006 (2018) [download].

[8] Jeng Yi Lee, Andrey E. Miroshnichenko, and RKL, "Reexamination of Kerker’s conditions by means of the phase diagram," Phys. Rev. A 96, 043846 (2017) [download].




[7] Jeng Yi Lee and RKL, "Phase diagram for investigating the scattering properties of passive scatterers," reported in SPIE Newsroom (May 2017) [download].

[6] Jeng Yi Lee, Andrey E. Miroshnichenko, and RKL, "Designing quantum resonant scatterers at subwavelength scale," Phys. Lett. A 381, 2860 (2017) [download].

[5] Jeng Yi Lee and RKL, "Phase diagram for passive electromagnetic scatterers," Optics Express 24, 6480 (2016) [download].

[4] Jeng-Yi Lee, Min-Chiao Tsai, Po-Chin Chen, Tin-Tin Chen, Kuei-Lin Chan, Chi-Young Lee, and RKL, "Thickness effect on light absorption and scattering for nanoparticles in shape of hollow-spheres," J. Phys. Chem: C 119, 25754 (2015) [download].

[3] Min-Chiao Tsai, Jeng-Yi Lee, Ya-Chen Chang, Min-Han Yang, Tin-Tin Chen, I-Chun Chang, Pei-Chi Lee, Hsin-Tien Chiu, RKL, and Chi-Young Lee, "Scattering resonance enhanced dye absorption of dye sensitized solar cells at optimized hollow structure size," J. Power Sources 268, 1 (2014) [download].

[2] Min-Chiao Tsai, Jeng-Yi Lee, Po-Chin Chen, Yuan-Wei Chang, Ya-Chen Chang, Min-Han Yang, Hsin-Tien Chiu, I-Nan Lin, RKL, and Chi-Young Lee, "Effects of size and shell thickness of TiO2 hierarchical hollow spheres on photocatalytic behavior: An experimental and theoretical study," Applied Catalysis B: Environmental 147, 499 (2014) [download].




[1] Jeng Yi Lee and RKL, "Hiding the interior region of core-shell nano-particles with quantum invisible cloaks," Phys. Rev. B 89, 155425 (2014) [download]; reported in Physics Today News Picks: Invisibility cloaks theorized to work for quantum effects.  [link-1]; MIT Technology Review / ExtremeTech: Phase diagram for investigating the scattering properties of passive scatterers.  [link-2] [link-3]

[27] Ming Shen, Yonan Su, Ray-Ching Hong, YuanYao Lin, Chien-Chung Jeng, Min-Feng Shih, and RKL, "Observation of phase boundaries in spontaneous optical pattern formation," Phys. Rev. A 91, 023810 (2015) [
download].

[26] E. S. Sedov, A. P. Alodjants, S. M. Arakelian, You-Lin Chuang, YuanYao Lin , Wen-Xing Yang, and RKL, "Tunneling-assisted optical information storage with lattice polariton solitons in cavity-QED arrays," Phys. Rev. A 89, 033828 (2014) [download].

[25] Kuan-Hsien Kuo, YuanYao Lin, and RKL, "Thresholdless crescent waves in an elliptical ring," Opt. Lett. 38, 1077 (2013) [download].

[24] L. Chen, Q. Wang, M. Shen, H. Zhao, YuanYao Lin, C.-C. Jeng, RKL, and W. Krolikowski, "Nonlocal dark solitons under competing cubic-quintic nonlinearities," Opt. Lett. 38, 13 (2013) [download].

[23] I-Hong Chen, YuanYao Lin, Y.-C. Lai, E. S. Sedov, A. P. Alodjants, S. M. Arakelian, and RKL, "Solitons in cavity-QED arrays containing interacting qubits," Phys. Rev. A 86, 023829 (2012) [download].

[22] Ming Shen, J.-J. Zheng, Q. Kong, YuanYao Lin, C.-C. Jeng, RKL, and W. Krolikowski, "Stabilization of counter-rotating vortex pairs in nonlocal media," Phys. Rev. A 86, 013827 (2012) [download].

[21] Chandroth P. Jisha, Kuei-Chu Hsu, YuanYao Lin, Ja-Hon Lin, Chien-Chung Jeng, and RKL, "Tunable pattern transitions in a liquid-crystal-monomer mixture using two-photon polymerization," Opt. Lett. 37, 4931 (2012) [download].

[20] Ming Shen, YuanYao Lin, Chien-Chung Jeng, and RKL, "Vortex pairs in nonlocal nonlinear media," J. Opt. 14, 065204 (2012) [download].

[19] Chandroth P. Jisha, Kuei-Chu Hsu, YuanYao Lin, Ja-Hon Lin, Kai-Ping Chuang, Chao-Yi Tai, and RKL, "Phase separation and pattern instability of laser-induced polymerization in liquid-crystal-monomer mixtures," Optical Materials Express 1, 1494 (2011); article in Feature issue on Liquid Crystal Materials for Photonic Applications [download].

[18] Chandroth P. Jisha, YuanYao Lin, Tsin-Dong Lee, and RKL "Crescent Waves in Optical Cavities," Phys. Rev. Lett. 107, 183902 (2011) [download].

[17] E.S. Sedov, A.P. Alodjants, S.M. Arakelian, YuanYao Lin, and RKL, "Nonlinear properties and stabilities of polariton crystals beyond the low excitation density limit," Phys. Rev. A 84, 013813 (2011) [download].

[16] Kuan-Hsien Kuo, YuanYao Lin, RKL, and Boris A. Malomed,"Gap solitons under competing local and nonlocal nonlinearities," Phys. Rev. A 83, 053838 (2011) [download].

[15] YuanYao Lin, I-Hong Chen, and RKL, "Few-cycle Self-Induced-Transparency Solitons," Phys. Rev. A 83, 043828 (2011) [download].

[14] YuanYao Lin, Chandroth P. Jisha, Ching-Jen Jeng, RKL, and Boris A. Malomed, "Gap solitons in optical lattices embedded into nonlocal media," Phys. Rev. A 81, 063803 (2010) [download].

[13] Wen-Xing Yang, YuanYao Lin, Tsin-Dong Lee, RKL, and Yuri S. Kivshar, "Nonlinear localized modes in bandgap microcavities," Opt. Lett. 35, 3207 (2010) [download].

[12] Chien-Chung Jeng, YuanYao Lin, Ray-Ching Hong, and RKL, "Optical Pattern Transitions from Modulation to Transverse Instabilities in Photorefractive Crystals," Phys. Rev. Lett. 102, 153905 (2009) [download].

[11] YuanYao Lin, RKL, and Boris A. Malomed, "Bragg solitons in nonlocal nonlinear media," Phys. Rev. A 80, 013838 (2009) [download].

[10] Wen-Xing Yang, Jing-Min Hou, YuanYao Lin, and RKL, "Detuning management of optical solitons in coupled quantum wells," Phys. Rev. A 79, 033825 (2009) [download].

[9] YuanYao Lin, RKL, and Yuri S. Kivshar, "Transverse instability of transverse-magnetic solitons and nonlinear surface plasmons," Opt. Lett. 34, 2982 (2009) [download].

[8] YuanYao Lin, Chih-Yao Chen, Wei Chien, Jin-Shan Pan, Tsin-Dong Lee, and RKL, "Enhanced directional lasing by the interference between stable and unstable periodic orbits," Appl. Phys. Lett. 94, 221112 (2009); Images also appear in Optics & Photonics News November issue (Winner in the 2008 After Image Photon Contest) [download].

[7] Ching-Jen Cheng, YuanYao Lin, Chih-Yao Chen, Tsin-Dong Lee, and RKL, "Lasing on higher-azimuthal-order modes in vertical cavity surface emitting lasers at room temperature," Appl. Phys. B 97, 619 (2009) [download].

[6] Tsin-Dong Lee, Chih-Yao Chen, YuanYao Lin, Ming-Chiu Chou, Te-ho Wu, and RKL, "Surface-Structure-Assisted Chaotic Mode Lasing in Vertical Cavity Surface Emission Lasers," Phys. Rev. Lett. 101, 084101 (2008); Images also appear in Optics & Photonics News November issue (Winner in the 2008 After Image Photon Contest) [download].

[5] YuanYao Lin, RKL, Yee-Mou Kao, and Tsin-Fu Jiang, "Band structures of a dipolar Bose-Einstein condensate in one-dimensional lattices," Phys. Rev. A 78, 023629 (2008) [download].

[4] YuanYao Lin and RKL, "Symmetry-breaking instabilities of generalized elliptical solitons," Opt. Lett. 33, 1377 (2008) [download].

[3] YuanYao Lin, RKL, and Yuri S. Kivshar, "Suppression of soliton transverse instabilities in nonlocal nonlinear media," J. Opt. Soc. Am. B 25, 576 (2008) [download].

[2] YuanYao Lin, I-Hong Chen, and RKL, "Breather-like Collision of Gap Solitons in Bragg Gap Regions within Nonlocal Nonlinear Photonic Crystals," J. Opt. A: Pure and Applied Optics 10, 044017 (special issue, 2008); selected papers from Optical MEMS and Nanophotonics 2007 (12–16 Aug. 2007, Hualien, Taiwan) [download].

[1] YuanYao Lin and RKL, "Dark-bright soliton pairs in nonlocal nonlinear media," Optics Express 15, 8781 (2007) [download].

[32] Zhouhu Zhu, Wen-Xing Yang, Xiao-Tao Xia, Shasha Liu, Shaopeng Liu, and RKL, "Three-dimensional atom localization from spatial interference in a double two-level atomic system," Phys. Rev. A 94, 013826 (2016) [
download].

[31] Wen-Xing Yang, Xiao-Tao Xie, Ai-Xi Chen, Ziwen Huagn, and RKL, "Coherent control of high-order-harmonic generation via tunable plasmonic bichromatic near fields in a metal nanoparticle,", Phys. Rev. A 93, 053806 (2016) [download].

[30] Shaopeng Liu, Wen-Xing Yang, Zhoughu Zhu, Shasha Liu, and RKL, "Effective hyper-Raman scattering via inhibiting electromagnetically induced transparency in monolayer graphene under an external magnetic field," Opt. Lett. 41, 2891 (2016) [download].

[29] Zhouhu Zhu, Wen-Xing Yang, Ai-Xi Chen, Shasha Liu, Shaopeng Liu, and RKL, "Dressed-state analysis of efficient three-dimensional atom localization in a ladder-type three-level atomic system," Laser Phys. 26, 075203 (2016) [download].

[28] Shaopeng Liu, Wen-Xing Yang, Zhonghu Zhu, and RKL, "Effective terahertz signal detection via electromagnetically induced transparency in graphene," J. Opt. Soc. Am. B 33, 279 (2016) [download].

[27] Wen-Xing Yang, Shaopeng Liu, Zhonghu Zhu, Ziaduddin, and RKL, "Tunneling-induced giant Goos-Hanchen shift in quantum wells," Opt. Lett. 40, 3133 (2015) [download].

[26] Wen-Xing Yang, Ai-Xi Chen, Ziwen Huang, and RKL, "Ultrafast optical switching in quantum dot-metallic nanoparticle hybrid systems," Optics Express 23, 13032 (2015) [download].

[25] Zhonghu Zhu, Wen-Xing Yang, Ai-Xi Chen, Shaopeng Liu, and RKL, "Two-dimensional atom localization via phase-sensitive absorption-gain spectra in five-level hyper inverted-Y atomic systems," J. Opt. Soc. Am. B 32, 1070 (2015) [download].

[24] Shaopeng Liu, Wen-Xing Yang, Zhonghu Zhu, and RKL, "Giant enhanced four-wave mixing efficiency via two-photon resonance in asymmetric quantum wells," Laser Phys. Lett. 12, 095202 (2015) [download].

[23] E. S. Sedov, A. P. Alodjants, S. M. Arakelian, You-Lin Chuang, YuanYao Lin, Wen-Xing Yang, and RKL, "Tunneling-assisted optical information storage with lattice polariton solitons in cavity-QED arrays," Phys. Rev. A 89, 033828 (2014) [download].

[22] Yonan Su, Chun-Yan Lin, Ray-Ching Hong, Wen-Xing Yang, Chien-Chung Jeng, Tien-Chang Lu, and RKL, "Lasing on surface states in vertical-cavity surface-emission lasers," Opt. Lett. 39, 5582 (2014) [download].

[21] Shaopeng Liu, Wen-Xing Yang, You-Lin Chuang, Ai-Xi Chen, Ang Liu, Yan Huang, and RKL, "Enhanced four-wave mixing efficiency in four-subband semiconductor quantum wells via Fano-type interference," Optics Express 22, 29179 (2014) [download].

[20] Wen-Xing Yang, Ai-Xi Chen, Ting-Ting Zha, Yanfeng Bai, adn RKL, "Interference-induced enhancement of field entanglement in a microwave-driven V-type single-atom laser," Central Euro. J. Phys. 12, 737 (2014) [download].

[19] Zhonghu Zhou, Ax-Xi Chen, Wen-Xing Yang, and RKL, "Phase knob for switching steady-state behaviors from bistability to multistability via spontaneously generated coherence," J. Opt. Soc. Am. B 31, 2061 (2014) [download].

[18] Zhonghu Zhou, Ax-Xi Chen, Yanfeng Bai, Wen-Xing Yang, and RKL, "Controllable optical steady behavior from nonradiative coherence in GaAs quantum well driven by a single elliptically polarized field," Modern Phys. Lett. B 28, 1450117 (2014) [download].

[17] Wen-Xing Yang, Jia-Wei Lu, Zhi-Kang Zhou, Long Yang, and RKL, "Phase control of light propagation via Fano interference in asymmetric double quantum wells," J. Appl. Phys. 115, 203104 (2014) [download].

[16] Wen-Xing Yang, Ai-Xi Chen, Yanfeng Bai, and RKL, "Ultrafast single-electron transfer in coupled quantum dots driven by a few-cycle chirped pulse," J. Appl. Phys. 115, 143105 (2014) [download].

[15] Wen-Xing Yang, Ai-Xi Chen, Hao Guo, Yanfeng Bai, and RKL, "Carrier-envelope phase control electron transport in an asymmetric double quantum dot irradiated by a few-cycle pulse," Opt. Comm. 328, 96 (2014) [download].

[14] Wen-Xing Yang, Wen-Hai Ma, Long Yang, Guo-Rui Zhang, and RKL, "Phase control of group velocity via Fano-type interference in a triple semiconductor quantum well," Opt. Comm. 324, 221(2014) [download].

[13] Zhen Wang, Ai-Xi Chen, Yanfeng Bai, Wen-Xing Yang, and RKL, "Coherent control of optical bistability in an open $\Lambda$-type three-level atomic system,," J. Opt. Soc. Am. B 29, 2891 (2012) [download].

[12] Wen-Xing Yang, Ai-Xi Chen, RKL, and Ying Wu, "Matched slow optical soliton pairs via biexciton coherence in quantum dots," Phys. Rev. A 84, 013835 (2011) [download].

[11] Wen-Xing Yang, Ai-Xi Chen, Liu-Gang Si, Kaijun Jiang, Xiaoxue Yang, and RKL, "Three-coupled ultraslow temporal solitons in a five-level tripod atomic system," Phys. Rev. A 81, 023814 (2010) [download].

[10] Wen-Xing Yang, YuanYao Lin, Tsin-Dong Lee, RKL, and Yuri S. Kivshar, "Nonlinear localized modes in bandgap microcavities," Opt. Lett. 35, 3207 (2010) [download].

[9] Wen-Xing Yang, Jing-Min Hou, YuanYao Lin, and RKL, "Detuning management of optical solitons in coupled quantum wells," Phys. Rev. A 79, 033825 (2009) [download].

[8] Wen-Xing Yang, Xiaoxue Yang, and RKL, "Carrier-envelope-phase dependent coherence in double quantum wells," Optics Express 17, 15402 (2009)[download].

[7] Wen-Xing Yang, Ting-Ting Zha, and RKL, "Giant Kerr nonlinearities and slow optical solitons in coupled double quantum-wells, " Phys. Lett. A 374, 355 (2009) [download].

[6] Wen-Xing Yang, Ai-Xi Chen, Ting-Ting Zha, and RKL, "Probe absorptions in an asymmetric double quantum well," J. Phys. B: At. Mol. Opt. Phys. 42, 225501 (2009) [download].

[5] Wen-Xing Yang, Jin Xu, and RKL, "Transient and steady-state absorptions of a weak probe field in a coupled double quantum-well structure," Mod. Phys. Lett. B 23, 2215 (2009) [download].

[4] Wen-Xing Yang, Jing-Min Hou, and RKL, "Highly efficient four-wave-mixing via intersubband transitions in InGaAs/AlAs coupled double quantum well structures," J. Modern Optics 56, 716 (special issue, 2009); special issue on Quantum control of Matter and Light [download].

[3] Wen-Xing Yang and RKL, "Controllable entanglement and polarization phase gate in coupled double quantum-well structures," Optics Express 16, 17161 (2008); also selected in Virtual Journal of Quantum Information 8, Issue 12 (2008) and selected in Virtual Journal of Nanoscale Science & Technology 18, Issue 23 (2008) [download].

[2] Wen-Xing Yang and RKL, "Slow optical solitons via intersubband transitions in a semiconductor quantum well," EuroPhys. Lett. 83, 14002 (2008) [download].

[1] Wen-Xing Yang, Jing-Min Hou, and RKL, "Ultraslow bright and dark solitons in semiconductor quantum wells," Phys. Rev. A 77, 033838 (2008) [download].

[8] Ming Shen, Wei Li, and RKL, "Control on the anomalous interactions of Airy beams in nematic liquid crystals," Optics Express 24, 8501 (2016) [
download].

[7] Ming Shen, Yonan Su, Ray-Ching Hong, YuanYao Lin, Chien-Chung Jeng, Min-Feng Shih, and RKL, "Observation of phase boundaries in spontaneous optical pattern formation," Phys. Rev. A 91, 023810 (2015) [download].

[6] Ming Shen, Hongwei Zhao, Bailing Li, Jielong Shi, Qi Wang, and RKL, "Stabilization of vortex solitons by combining competing cubic-quintic nonlinearities with a finite degree of nonlocality," Phys. Rev. A 89, 025804 (2014) [download].

[5] Q. Kong, Ming Shen, Z. Chen, Q. Wang, RKL, and W. Krolikowski, "Dark solitons in nonlocal media with competing nonlinearities," Phys. Rev. A 87, 063832 (2013) [download].

[4] L. Chen, Q. Wang, Ming Shen, H. Zhao, Y.Y. Lin, C.-C. Jeng, RKL, and W. Krolikowski, "Nonlocal dark solitons under competing cubic-quintic nonlinearities," Opt. Lett. 38, 13 (2013) [download].

[3] Ming Shen, J.-J. Zheng, Q. Kong, YuanYao Lin, C.-C. Jeng, RKL, and W. Krolikowski, "Stabilization of counter-rotating vortex pairs in nonlocal media," Phys. Rev. A 86, 013827 (2012) [download].

[2] Ming Shen, YuanYao Lin, Chien-Chung Jeng, and RKL, "Vortex pairs in nonlocal nonlinear media," J. Opt. 14, 065204 (2012) [download].

[1] Ming Shen, Qian Kong, Chien-Chung Jeng, Li-Juan Ge, RKL, and Wieslaw Krolikowski, "Instability suppression of vector-necklace-ring solitons in nonlocal media," Phys. Rev. A 83, 023825 (2011) [download].

[3] Jibing Liu, Xiao-Tao Xie, Chuan-Jia Shan, Tang-Kun Liu, RKL, and Ying Wu, "Optical bistability in nonlinear periodical structures with PT-symmetric potential," Laser Physics 25, 015102 (2015) [
download].

[2] Jibing Liu, Tangkun Liu, Hong Li, Xiao-Tao Xie, D. N. Wang, and RKL, "(2+1)-D spatial ring solitons in a semiconductor quantum well system," EuroPhys. Lett. 112, 56002 (2015) [download].

[1] Yi-Chan Lee, Jibing Liu, You-Lin Chuang, Min-Hsiu Hsieh, and RKL, "Passive PT-symmetric couplers without complex optical potentials," Phys. Rev. A 92, 053815 (2015) [download].

[11] You-Lin Chuang, Ziauddin, and RKL, "Realization of simultaneously parity-time-symmetric and parity-time-antisymmetric susceptibilities along the longitudinal direction in atomic systems with all optical controls," Optics Express 26, 21969 (2018) [
download];

[10] Rahmatullah, Ziauddin, You-Lin Chuang, RKL, and Sajid Qamar, "Sub-microwave wavelength localization of Rydberg superatoms," J. Opt. Soc. Am. B 35, 2588 (2018) [download].

[9] Muhammad Tariq, Ziauddin, Tahira Bano, Iftikhar Ahmad and RKL, " Cavity electromagnetically induced transparency via spontaneously generated coherence," J. Mod. Opt. 64, 1777 (2017) [download].

[8] Ziauddin, You-Lin Chuang, and RKL, "PT-symmetry in Rydberg atoms," EuroPhys. Lett. 115, 14005 (2016) [download].

[7] Ziauddin, You-Lin Chuang, Sajid Qamar, and RKL, "Goos-Hanchen shift of partially coherent light fields in epsilon-near-zero metamaterials," Sci. Rep. 6, 26504 (2016) [download].

[6] Ziauddin, RKL, and Sajid Qamar, "Control of Goos-Hanchen shift via input probe field intensity," Opt. Comm. 379, 68 (2016) [download].

[5] Ziauddin, RKL, and Sajid Qamar, "Goos-Hanchen shifts of partially coherent light beams from a cavity with a four-level Raman gain medium," Opt. Comm. 374, 45 (2016) [download].

[4] Ziauddin, You-Lin Chuang, RKL, and Sajid Qamar, "Coherent control of the group velocity in a dielectric slab doped with duplicated two-level atoms," Laser Phys. 26, 015205 (2016) [download].

[3] Ziauddin, You-Lin Chuang, and RKL, "Giant Goos-Hanchen shift using PT-symmetry," Phys. Rev. A 92, 013815 (2015) [download].

[2] Ziauddin, You-Lin Chuang, and RKL, "Negative and positive Goos-Hanchen shifts of partially coherent light fields," Phys. Rev. A 91, 013803 (2015) [download].

[1] Wen-Xing Yang, Shaopeng Liu, Zhonghu Zhu, Ziaduddin, and RKL, "Tunneling-induced giant Goos-Hanchen shift in quantum wells," Opt. Lett. 40, 3133 (2015) [download].

[7] Alessandro Alberucci, Chandroth P. Jisha, RKL, and Gaetano Assanto, "Soliton self-routing in a finite photonic potential," Opt. Lett. 38, 2071(2013) [
download].

[6] Chandroth P. Jisha, Alessandro Alberucci, RKL, and Gaetano Assanto, "Deflection and trapping of spatial solitons in linear photonic potentials," Optics Express 21, 18646 (2013) [download].

[5] Chandroth P. Jisha, Kuei-Chu Hsu, YuanYao Lin, Ja-Hon Lin, Chien-Chung Jeng, and RKL, "Tunable pattern transitions in a liquid-crystal-monomer mixture using two-photon polymerization," Opt. Lett. 37, 4931 (2012) [download].

[4] Chandroth P. Jisha, YuanYao Lin, Tsin-Dong Lee, and RKL "Crescent Waves in Optical Cavities," Phys. Rev. Lett. 107, 183902 (2011) [download].

[3] Chandroth P. Jisha, Alessandro Alberucci, RKL, and Gaetano Assanto, "Optical Solitons and Wave-Particle Duality," Opt. Lett. 36, 1848 (2011) [download].

[2] Chandroth P. Jisha, Kuei-Chu Hsu, YuanYao Lin, Ja-Hon Lin, Kai-Ping Chuang, Chao-Yi Tai, and RKL, "Phase separation and pattern instability of laser-induced polymerization in liquid-crystal-monomer mixtures," Optical Mateirals Express 1, 1494 (2011); article in Feature issue on Liquid Crystal Materials for Photonic Applications [download].

[1] YuanYao Lin, Chandroth P. Jisha, Ching-Jen Jeng, RKL, and Boris A. Malomed, "Gap solitons in optical lattices embedded into nonlocal media," Phys. Rev. A 81, 063803 (2010) [download].

[4] Raul A. Robles Robles, S. A. Chilingaryan, Blas M. Rodriguez-Lara, and RKL, "Ground state in the finite Dicke model for interacting qubits," Phys. Rev. A 91, 033819 (2015); Images also selected as the Kaleidoscope in Phys. Rev. A [
download].




[3] Blas M. Rodríguez-Lara and RKL, "Classical dynamics of a two-species Bose-Einstein condensates in the presence of nonlinear master processes," Book chapter in "Spontaneous Symmetry Breaking, Self-trapping, and Josephson Oscillations," edited by Boris A. Malomed for the series in Progress in Optical Science and Photonics (Springer-Verlag Berlin Heidelburg, 2012) [Link].

[2] Blas M. Rodriguez-Lara and RKL, "Classical dynamics of a two-species condensate driven by a quantum field," Phys. Rev. E 84, 016225 (2011) [download].

[1] Blas M. Rodríguez-Lara and RKL, "Quantum phase transition of nonlinear light in the finite size Dicke Hamiltonian," J. Opt. Soc. Am. B 27, 2443 (2010); also selected in Virtual Journal of Quantum Information 10, Issue 12 (2010); and selected in Virtual Journal of Atomic Quantum Fluids 2, Issue 12 (2010) [download].

Dr. Ludmila Praxmeyer


[2] Ludmila Praxmeyer, Chih-Cheng Chen, Popo Yang, Shang-Da Yang, and RKL, "Direct measurement of time-frequency analogs of sub-Planck structures," Phys. Rev. A 93, 053835 (2016) [download].

[1] Ludmila Praxmeyer, Popo Yang, and RKL, "Phase-space representation of a non-Hermitian system with PT-symmetry," Phys. Rev. A 93, 042122 (2016) [download].


Dr. Parvendra Kumar


[1] Parvendra Kumar and RKL, "Sensitivity of sub-Planck structures of mesoscopically superposed coherent states to the thermal reservoirs induced decoherence," Opt. Comm. 394, 23 (2017) [download].


Dr. Qing Xu (徐清)



Dr. Ray-Ching Hong (洪瑞慶)


[5] Ray-Ching Hong, Chun-Yan Lin, You-Lin Chuang, Chien-Ming Wu, Yonan Su, Jeng Yi Lee, Chien-Chung Jeng, Ming-Feng Shih, and RKL, "Resonance in modulation instability from non-instantaneous nonlinearities," Opt. Lett. 43, 3329 (2018) [download].

[4] Ming Shen, Yonan Su, Ray-Ching Hong, YuanYao Lin, Chien-Chung Jeng, Min-Feng Shih, and RKL, "Observation of phase boundaries in spontaneous optical pattern formation," Phys. Rev. A 91, 023810 (2015) [download].

[3] Chien-Chung Jeng, Yonan Su, Ray-Ching Hong, and RKL, "Control modulation instability in photorefractive crystals by the intensity ratio of background to signal fields," Optics Express 23, 10266 (2015) [download].

[2] Yonan Su, Chun-Yan Lin, Ray-Ching Hong, Wen-Xing Yang, Chien-Chung Jeng, Tien-Chang Lu, and RKL "Lasing on surface states in vertical-cavity surface-emission lasers," Opt. Lett. 39, 5582 (2014) [download].

[1] Chien-Chung Jeng, YuanYao Lin, Ray-Ching Hong, and RKL, "Optical Pattern Transitions from Modulation to Transverse Instabilities in Photorefractive Crystals," Phys. Rev. Lett. 102, 153905 (2009) [download].


Dr. Yonan Su (蘇佑男)


[4] Ray-Ching Hong, Chun-Yan Lin, You-Lin Chuang, Chien-Ming Wu, Yonan Su , Jeng Yi Lee, Chien-Chung Jeng, Ming-Feng Shih, and RKL, "Resonance in modulation instability from non-instantaneous nonlinearities," Opt. Lett. 43, 3329 (2018) [download].

[3] Ming Shen, Yonan Su, Ray-Ching Hong, YuanYao Lin, Chien-Chung Jeng, Min-Feng Shih, and RKL, "Observation of phase boundaries in spontaneous optical pattern formation," Phys. Rev. A 91, 023810 (2015) [download].

[2] Chien-Chung Jeng, Yonan Su, Ray-Ching Hong, and RKL, "Control modulation instability in photorefractive crystals by the intensity ratio of background to signal fields," Optics Express 23, 10266 (2015) [download].

[1] Yonan Su, Chun-Yan Lin, Ray-Ching Hong, Wen-Xing Yang, Chien-Chung Jeng, Tien-Chang Lu, and RKL "Lasing on surface states in vertical-cavity surface-emission lasers," Opt. Lett. 39, 5582 (2014) [download].


Dr. Yi-Chan Lee (李易展)


[2] Yi-Chan Lee, Jibing Liu, You-Lin Chuang, Min-Hsiu Hsieh, and RKL, "Passive PT-symmetric couplers without complex optical potentials," Phys. Rev. A 92, 053815 (2015) [download].


[1] Yi-Chan Lee, Min-Hsiu Hsieh, Steven T. Flemmia, and RKL, "Local PT symmetry violates the no-signaling principle," Phys. Rev. Lett. 112, 130404 (2014) [download]; Editors' Suggestion; Featured in Physics: Reflecting on an Alternative Quantum Theory.  [link]


Dr. Kuan-Hsien Kuo (郭冠賢)


[2] Kuan-Hsien Kuo, YuanYao Lin, and RKL, "Thresholdless crescent waves in an elliptical ring," Opt. Lett. 38, 1077 (2013) [download].

[1] Kuan-Hsien Kuo, YuanYao Lin, RKL, and Boris A. Malomed,"Gap solitons under competing local and nonlocal nonlinearities," Phys. Rev. A 83, 053838 (2011) [download].


Dr. Soi-Chan Lei (李瑞珍)


[3] Soi-Chan Lei, Tai-Kai Ng, and RKL, "Photonic analogue of Josephson effect in a dual-species optical-lattice cavity," Optics Express 18, 14586 (2010) [download].


[2] Soi-Chan Lei and RKL, "Quantum Phase Transitions of Light for Two-level Atoms," Optics and Photonics News Dec., 44 Optics in 2008: Quantum Phase Transitions of Light for Two-level Atoms [download].

[1] Soi-Chan Lei and RKL, "Quantum Phase Transitions of Light in the Dicke-Bose-Hubbard model," Phys. Rev. A 77, 033827 (2008)[download].


Research Topics:


Targets:


Preliminary experimental data for the Cat state, its reconstructed Wigner wave function, and the corresponding density matrix.


  • As classical counterparts utilizing both digit and analog information processing, quantum qubits in continuous variables (CV) provide a complementary family to the fragile discrete variables only with single photons and photon pairs.
  • Continuous variables (CV) states, including coherent and squeezed states, are intrinsically multi-particle quantum superpositions and may be used to probe the quantum-to-classical transition, as well as the generation of Einstein-Podolsky-Rosen states.
  • To have a fully understanding about quantum wave function, we have implemented the quantum state tomography, including the Wigner function and density matrix for quantum wave-packets.


Achievements:
   

  • We report our implementation of a squeezer, by generating squeezed vacuum state at 1064 nm through a bow-tie optical parametric oscillator cavity operated below the threshold. With the help of our home-made balanced homodyne detector (BHD), characterized with a Common Mode Rejection Ratio (CMRR) more than 80dB. Detection of 10 dB vacuum noise squeezing at 1064 nm [1].


[1] Chien-Ming Wu, Shu-Rong Wu, Yi-Ru Chen, Hsun-Chung Wu, and RKL, Conference on Lasers and Electro-Optics (CLEO), paper JTu2A.38 (2019) [ Download].


Next:

 

Targets:

The astrophysical reach of current and future ground-based gravitational-wave detectors is mostly limited by quantum noise, induced by vacuum fluctuations entering the detector output port. The replacement of this ordinary vacuum field with a squeezed vacuum field has proven to be an effective strategy to mitigate such quantum noise and it is currently used in advanced detectors.

However, current squeezing cannot improve the noise across the whole spectrum because of the Heisenberg uncertainty principle: when shot noise at high frequencies is reduced, radiation pressure at low frequencies is increased. A broadband quantum noise reduction is possible by using a more complex squeezing source, obtained by reflecting the squeezed vacuum off a Fabry-Perot cavity, known as filter cavity.



 

Achievements:

  • First demonstration of a frequency-dependent squeezed vacuum source able to reduce quantum noise of advanced gravitational-wave detectors in their whole observation bandwidth. The experiment uses a suspended 300-m-long filter cavity, similar to the one planned for KAGRA, Advanced Virgo, and Advanced LIGO, and capable of inducing a rotation of the squeezing ellipse below 100 Hz [1].




[1] Yuhang Zhao, Naoki Aritomi, Eleonora Capocasa, Matteo Leonardi, Marc Eisenmann, Yuefan Guo, Eleonora Polini, Akihiro Tomura, Koji Arai, Yoichi Aso, Yao-Chin Huang , RKL, Harald Luck, Osamu Miyakawa, Pierre Prat, Ayaka Shoda, Matteo Tacca, Ryutaro Takahashi, Henning Vahlbruch, Marco Vardaro, Chien-Ming Wu, Matteo Barsuglia, and Raffaele Flaminio, "Frequency-dependent squeezed vacuum source for broadband quantum noise reduction in advanced gravitational-wave detectors," Phys. Rev. Lett. 124, 171101 (2020) [download];   Editors' Suggestion; Featured in Physics [download].


Next:


The plan is to have filter cavities like these installed for the next round of observing that should start in 2022. Eventually, this and other improvements are expected to give an eightfold increase in detection rate, for both black hole and neutron star mergers, which are observable, respectively, at low and high frequencies.
Squeezing into the Tunnel !!


Targets:
  • Based on the niche of silicon photonics technologies and semiconductor industries in Taiwan, we plan to integrate these enabling technologies, based our expertise on photonic qubits (single photon source, entangled photon pair, squeezed light), integrated optical components based on silicon photonics, and photon detector arrays (single photon avalanche diode, homodyne detector), for the realization of "Scalable Quantum Photonic Chips on Silicon".
  • The target is to incorporate our current fabrication technologies into a large-scale quantum system, and to realize multiplexing silicon photonic quantum chips with the ability to perform fault-tolerant quantum computation at room temperature.


Achievements:

CNOT-gate on the silicon photonics, collaborated with Prof. Mark Ming-Chang Lee (NTHU)


Next:


Achievements:


  • Exploiting the correspondence between the Wigner distribution function and the frequency-resolved optical gating (FROG) measurement, we experimentally demonstrate the existence of chessboard-like interference patterns with a time-bandwidth product smaller than that of a transform-limited pulse in the phase-space representation of compass states. Using superpositions of four electric pulses as the realization of compass states, we have shown via direct measurements that displacements leading to orthogonal states can be smaller than limits set by uncertainty relations. In the experiment we observe an exactly chronocyclic correspondence to the sub-Planck structure in the interference pattern appearing for the superposition of two Schrodinger-cat-like states in a position-momentum phase space [1].
  • We present a phase-space study of a non-Hermitian Hamiltonian with PT symmetry based on the Wigner distribution function. For an arbitrary complex potential, we derive a generalized continuity equation for the Wigner function flow and calculate the related circulation values. Studying the vicinity of an exceptional point, we show that a PT-symmetric phase transition from an unbroken PT -symmetry phase to a broken one is a second-order phase transition [2].
  • We derive a continuity equation for the evolution of the SU(2) Wigner function under nonlinear Kerr evolution. We give explicit expressions for the resulting quantum Wigner current, and discuss the appearance of the classical limit. We show that the global structure of the quantum current significantly differs from the classical one, which is clearly reflected in the form of the corresponding stagnation lines [3].


[3] Popo Yang, Ivan F. Valtierra, Andrei B. Klimov, Shin-Tza Wu, RKL, and Luis L. Sanchez-Soto, and Gerd Leuchs, "The Wigner flow on the sphere," Physica Scripta 94, 044001 (2019); for the New Focus issue: Quantum Optics and Beyond- in honour of Wolfgang Schleich [download].

[2] Ludmila Praxmeyer, Popo Yang, and RKL, "Phase-space representation of a non-Hermitian system with PT-symmetry," Phys. Rev. A 93, 042122 (2016) [download].

[1] Ludmila Praxmeyer, Chih-Cheng Chen, Popo Yang, Shang-Da Yang, and RKL, "Direct measurement of time-frequency analogs of sub-Planck structures," Phys. Rev. A 93, 053835 (2016) [download].


Next:

Targets:

Instead of conventional quantum mechanics with Hermitian Hamiltonians, non-Hermitian parity-time (PT)-symmetry was initially introduced to generalize quantum mechanics, with the introduction of the parity operator P and time-reversal operator T. Non-Hermitian Hamiltonians are useful in theoretical work, and they are a mathematical tool for studying open quantum systems in nuclear physics or quantum optics.

Quantum thermodynamics and quantum nonlocality share similar capacity to tell quantum and classical regimes apart. For quantum nonlocality, we have the famous Einstein-Podolsky-Rosen (EPR) paradox and Bell’s inequality to illustrate the bizarre nature of quantum theory. On the other hand, for quantum thermodynamics, a multitude of intriguing phenomena related to various definitions of work have been addressed.




Achievements:

  • We rule out PT-symmetry as a fundamental theory, but it still could be useful as an effective theory and an interesting model for open systems in classical optics [1].
  • Due to noisy environment, quantum signals are in general fragile and hard to be detected. Through weak measurement to enlarge the quantum signal, we disclose the way to simulate pseudo-Hermitian system quantum theory [6].
  • For the quantification of steerability, we prove that a strengthened version of the steering fraction is a convex steering monotone and demonstrate how it is related to two other steering monotones, namely, steerable weight and steering robustness [3].
  • For a bipartite state with equal local dimension d, we prove that one can obtain work gain under Landauer’s erasure process on one party in the identically and independently distributed limit when the corresponding fully entangled fraction is larger than d. As a step to link quantum thermodynamics and quantum nonlocality, we also provide a simple picture to approximate the optimal work extraction and suggest a potential thermodynamic interpretation of the fully entangled fraction for isotropic states [4].


[9] Hai Wang, RKL, and Junde Wu, "Discrete-time modeling of quantum evolutions, the energy-time uncertainty relation and general extensions in the entangled history formalism," submitted for publication (Jan. 2020).[arXiv: 1908.02935].

[8] Hai Wang, RKL, Manish Kumar Shukla, Indranil Chakrabarty, Shaoming Fei, and Junde Wu, "Quantum Channels as Temporal Correlations in Quantum Mechanics," submitted for publication (Feb. 2020).[arXiv: 1910.05694].

[7] Li-Yi Hsu, Ching-Yi Lai, You-Chia Chang, Chien-Ming Wu, and RKL, "Carrying an arbitrarily large amount of information using a single quantum particle," Phys. Rev. A 102, 022620 (2020); [download].

[6] Minyi Huang, RKL, Lijian Zhang, Shao-Ming Fei, and Junde Wu, "Simulating broken PT-symmetric Hamiltonian systems by weak measurement," Phys. Rev. Lett. 123, 080404 (2019) [download].

[5] Minyi Huang, RKL, and Junde Wu, "Manifestation of Superposition and Coherence in PT-symmetry through the $\eta$-inner Product," J. Phys. A: Math. Theor. 51, 414004 (2018) [download].

[4] Chung-Yun Hsieh and RKL, "Work extraction and fully entangled fraction," Phys. Rev. A 96, 012107 (2017) [download]; Phys. Rev. A 97, 059904(E) (2018) [Erratum].

[3] Chung-Yun Hsieh, Yeong-Cherng Liang, and RKL, "Quantum steerability: Characterization, quantification, superactivation, and unbounded amplification," Phys. Rev. A 94, 062120 (2016) [download].

[2] Ludmila Praxmeyer, Popo Yang, and RKL, "Phase-space representation of a non-Hermitian system with PT-symmetry," Phys. Rev. A 93, 042122 (2016) [download].


[1] Yi-Chan Lee, Min-Hsiu Hsieh, Steven T. Flemmia, and RKL, "Local PT symmetry violates the no-signaling principle," Phys. Rev. Lett. 112, 130404 (2014) [download]; Editors' Suggestion; Featured in Physics: Reflecting on an Alternative Quantum Theory.  [link]


Next:


The cover gives a pictorial view of a unique eye that learns to observe differences between quantum and classical effects in the space of surrounding networks.

Targets:

Quantum effects are known to provide a speedup in particle transport in specific networks under some requirements on the system coherence. The exact requirements are, however, not only determined by the quantum experimental system, but also by the network itself. In particular, Quantum Walks is a tool for studying various phenomena in quantum systems, including quantum transport in complex networks for the developments in quantum computing, search algorithms, communication networks, and efficient energy transport.

Understanding these advantages of quantum transport over classical transport would be beneficial for many fields.




Achievements:

  • How to improve our understanding of noisy quantum walks in networks with computer vision? we came up with an automated approach to study quantum transport properties and predict a possibility of a quantum advantage in particle transfer, with a specific neural network called classical-quantum convolutional neural network (CQCNN) [1].


[1] Alexey A. Melonikov, Leonid E. Fedichkin, RKL, and Alexander Alodjants, "Machine learning transfer efficiencies for noisy quantum walks," Adv. Quant. Tech. 3,1900115 (2020) [download];   Back Cover for Adv. Quantum Technol. 4/2020.  [link]


Next:

Implementation of Quantum Machine Learning in IBM Q Experience!


Quantum State Generation:

[1] Chien-Ming Wu, Shu-Rong Wu, Yi-Ru Chen, Hsun-Chung Wu, and RKL, Conference on Lasers and Electro-Optics (CLEO), paper JTu2A.38 (2019) [ Download].


Quantum Measurement:

[1] Minyi Huang, RKL, Lijian Zhang, Shao-Ming Fei, and Junde Wu, "Simulating broken PT-symmetric Hamiltonian systems by weak measurement," Phys. Rev. Lett. 123, 080404 (2019) [download].


Test of Quantum Mechanics:

[3] Hai Wang, RKL, and Junde Wu, "Discrete-time modeling of quantum evolutions, the energy-time uncertainty relation and general extensions in the entangled history formalism," submitted for publication (Jan. 2020).[arXiv: 1908.02935].

[2] Hai Wang, RKL, Manish Kumar Shukla, Indranil Chakrabarty, Shaoming Fei, and Junde Wu, "Quantum Channels as Temporal Correlations in Quantum Mechanics," submitted for publication (Feb. 2020).[arXiv: 1910.05694].


[1] Yi-Chan Lee, Min-Hsiu Hsieh, Steven T. Flemmia, and RKL, "Local PT symmetry violates the no-signaling principle," Phys. Rev. Lett. 112, 130404 (2014) [download]; Editors' Suggestion; Featured in Physics: Reflecting on an Alternative Quantum Theory.  [link]


Quantum Entanglement:

[6] Chung-Yun Hsieh, Yeong-Cherng Liang, and RKL, "Quantum steerability: Characterization, quantification, superactivation, and unbounded amplification," Phys. Rev. A 94, 062120 (2016) [download].

[5] You-Lin Chuang, RKL, and Ite A. Yu, "Generation of quantum entanglement based on electromagnetically induced transparency media," submitted for publication (April 2020); [arXiv: 1906.12025].

[4] You-Lin Chuang and RKL, "Conditions to preserve quantum entanglement of quadrature fluctuation fields in electromagnetically induced transparency media," Opt. Lett. 34, 1537 (2009); also selected in Virtual Journal of Quantum Information 9, Issue 6 (2009) [download]

[3] You-Lin Chuang, Ite A. Yu, and RKL, "Nonseparated states from squeezed dark-state polaritons in electromagnetically induced transparency media," J. Opt. Soc. Am. B 32, 1384 (2015) [download].

[2] RKL, Yinchieh Lai, and Boris Malomed, "Generation of photon-number entangled soliton pairs through interactions," Phys. Rev. A 71, 013816 (2005); also selected in Virtual Journal of Quantum Information 5, Issue 2 (2005) [download].

[1] Yinchieh Lai and RKL, "Entangled Quantum Nonlinear Schrodinger Solitons," Phys. Rev. Lett. 103, 013902 (2009); also selected in Virtual Journal of Nanoscale Science & Technology 20, Issue 2 (2009); and selected in Virtual Journal of Quantum Information 9, Issue 7 (2009) [download].


Horizons:




Cavity-QED:




Circuit-QED:




Quantum Solitons:

 More



Electromagnetically Induced Transparency (EIT):

[11] You-Lin Chuang, RKL, and Ite A. Yu, "Generation of quantum entanglement based on electromagnetically induced transparency media," submitted for publication (April 2020); [arXiv: 1906.12025].

[10] Raul A. Robles Robles and RKL, "Quantum phase transition of a finite number of atoms in electromagnetically induced transparency media," J. Opt. Soc. Am. B 37, 1388 (2020) [download].

[9] You-Lin Chuang, RKL, and Ite A. Yu, "Optical-density-enhanced squeezed-light generation without optical cavities," Phys. Rev. A 96, 053818 (2017) [download].

[8] Muhammad Tariq, Ziauddin, Tahira Bano, Iftikhar Ahmad and RKL, " Cavity electromagnetically induced transparency via spontaneously generated coherence," J. Mod. Opt. 64, 1777 (2017) [download].

[7] Shaopeng Liu, Wen-Xing Yang, Zhoughu Zhu, Shasha Liu, and RKL, "Effective hyper-Raman scattering via inhibiting electromagnetically induced transparency in monolayer graphene under an external magnetic field," Opt. Lett. 41, 2891 (2016) [download].

[6] Shaopeng Liu, Wen-Xing Yang, Zhonghu Zhu, and RKL, "Effective terahertz signal detection via electromagnetically induced transparency in graphene," J. Opt. Soc. Am. B 33, 279 (2016) [download].

[5] You-Lin Chuang, Ite A. Yu, and RKL, "Quantum theory for pulse propagation in electromagnetically-induced-transparency media beyond the adiabatic approximation," Phys. Rev. A 91, 063818 (2015) [download].

[4] You-Lin Chuang, Ite A. Yu, and RKL, "Nonseparated states from squeezed dark-state polaritons in electromagnetically induced transparency media," J. Opt. Soc. Am. B 32, 1384 (2015) [download].

[3] Wen-Xing Yang, Ai-Xi Chen, Yanfeng Bai, and RKL, "Ultrafast single-electron transfer in coupled quantum dots driven by a few-cycle chirped pulse," J. Appl. Phys. 115, 143105 (2014) [download].

[2] Wen-Xing Yang, Ai-Xi Chen, Hao Guo, Yanfeng Bai, and RKL, "Carrier-envelope phase control electron transport in an asymmetric double quantum dot irradiated by a few-cycle pulse," Opt. Comm. 328, 96 (2014) [download].

[1] You-Lin Chuang and RKL, "Conditions to preserve quantum entanglement of quadrature fluctuation fields in electromagnetically induced transparency media," Opt. Lett. 34, 1537 (2009); also selected in Virtual Journal of Quantum Information 9, Issue 6 (2009) [download]


Fluorescence Spectrum:

[1] RKL, and Yinchieh Lai, "Fluorescence squeezing spectra near a photonic bandgap," J. Opt. B: Quantum and Semiclassical Optics 6, S715 (special issue 2004); in memoriam of Hermann Anton Haus, 1925-2003 [download].


Goos-Hanchen shift:

[6] Ziauddin, You-Lin Chuang, Sajid Qamar, and RKL, "Goos-Hanchen shift of partially coherent light fields in epsilon-near-zero metamaterials," Sci. Rep. 6, 26504 (2016) [download].

[5] Ziauddin, RKL, and Sajid Qamar, "Control of Goos-Hanchen shift via input probe field intensity," Opt. Comm. 379, 68 (2016) [download].

[4] Ziauddin, RKL, and Sajid Qamar, "Goos-Hanchen shifts of partially coherent light beams from a cavity with a four-level Raman gain medium," Opt. Comm. 374, 45 (2016) [download].

[3] Ziauddin, You-Lin Chuang, and RKL, "Giant Goos-Hanchen shift using PT-symmetry," Phys. Rev. A 92, 013815 (2015) [download].

[2] Ziauddin, You-Lin Chuang, and RKL, "Negative and positive Goos-Hanchen shifts of partially coherent light fields," Phys. Rev. A 91, 013803 (2015) [download].

[1] Wen-Xing Yang, Shaopeng Liu, Zhonghu Zhu, Ziaduddin, and RKL, "Tunneling-induced giant Goos-Hanchen shift in quantum wells," Opt. Lett. 40, 3133 (2015) [download].


Atom Localization:

[5] Rahmatullah, Ziauddin, You-Lin Chuang, RKL, and Sajid Qamar, "Sub-microwave wavelength localization of Rydberg superatoms," J. Opt. Soc. Am. B 35, 2588 (2018) [download].

[4] Rahmatullah, You-Lin Chuang, RKL, and Sajid Qamar, "3D atom microscopy in the presence of Doppler shift," Laser Phys. Lett. 15, 035202 (2018) [download];

[3] Zhouhu Zhu, Wen-Xing Yang, Xiao-Tao Xia, Shasha Liu, Shaopeng Liu, and RKL, "Three-dimensional atom localization from spatial interference in a double two-level atomic system," Phys. Rev. A 94, 013826 (2016) [download].

[2] Zhouhu Zhu, Wen-Xing Yang, Ai-Xi Chen, Shasha Liu, Shaopeng Liu, and RKL, "Dressed-state analysis of efficient three-dimensional atom localization in a ladder-type three-level atomic system," Laser Phys. 26, 075203 (2016) [download].

[1] Zhonghu Zhu, Wen-Xing Yang, Ai-Xi Chen, Shaopeng Liu, and RKL, "Two-dimensional atom localization via phase-sensitive absorption-gain spectra in five-level hyper inverted-Y atomic systems," J. Opt. Soc. Am. B 32, 1070 (2015) [download].

Targets:
  • Quantum-noise squeezing and correlations are two key quantum properties that can exhibit completely different characteristics when compared to the predictions of the classical theory. Almost all the proposed applications to quantum measurements and quantum information treatment utilize either one or both of these properties.
  • The quantum nonlinear Schrodinger equation (QNLSE) has been widely used as a model equation for studying the quantum effects of bosonic solitons, i.e., the evolution equation of a one-dimensional bosonic system with δ-function interaction under the second quantization framework. In particular, solitons in optical fibers have been known to serve as a platform for demonstrating macroscopic quantum properties in optical fields, such as quadrature squeezing, amplitude squeezing, and both intra-pulse and inter-pulse correlations.
  • Meanwhile, low-absorption, slow-light and quantum memory make electromagnetically induced transparency (EIT) to be a promising ingredient in the development of quantum technologies. In the scenario, quantum optical pulse propagation in EIT, quantum squeezing generation in coherent population trapping media, large cross-phase modulation at few-photon level, and quantum correlated light generation as well as multiple fields correlation have been actively studied.



     


Achievements:
  • Solitons after collision are rigorously proved to become quantum entangled in the sense that their quadrature components of suitably selected internal modes satisfy the inseparability criterion [10].
  • The quantum-noise squeezing and quantum correlations are revealed for fiber solitons [2], Bragg solitons [1, 3], gap solitons in Bose-Einstein condensate [7], breathers [5, 6], bounded solitons in mode-locked fiber lasers [4, 8].
  • A general quantum theory of self-induced transparency 􏰋(SIT)􏰃 solitons is developed with nonlinear quantum effects of atoms taken into account [9].
  • The quantum fluctuation effects in the time-of-flight (TOF) experiment for a condensate released from an optical-lattice potential is studied within the truncated Wigner approximation [12].
  • Beyond the adiabatic approximation, we develop a quantum theory for optical probe pulses propagating in electromagnetically-induced-transparency (EIT) media by including Langevin noise operators and asking the field operator to satisfy bosonic commutation relation [15, 16, 19].
  • Considering matter wave bright solitons from weakly coupled Bose-Einstein condensates trapped in a double-well potential, we study the formation of macroscopic non- classical states, including Schrodinger-cat superposition state and maximally path entangled N00N-state. We have shown that solitons, as quantum nonlinear structured field objects, allow super-Heisenberg (SH) sensitivity, i.e. beyond Heisenberg limit, is one of the principal problems for current quantum metrology [17, 18].

[19] You-Lin Chuang, RKL, and Ite A. Yu, "Generation of quantum entanglement based on electromagnetically induced transparency media," submitted for publication (April 2020); [arXiv: 1906.12025].

[18] D. V. Tsarev, T. V. Ngo, RKL, and A. P. Alodjants, "Nonlinear quantum metrology with moving matter-wave solitons," New J. Phys. 21, 083041 (2019) [download].

[17] D. V. Tsarev, S. M. Arakelian, You-Lin Chuang, RKL, and A. P. Alodjants, "Quantum metrology beyond Heisenberg limit with entangled matter wave solitons," Optics Express 26, 19583 (2018) [download].

[16] You-Lin Chuang, RKL, and Ite A. Yu, "Optical-density-enhanced squeezed-light generation without optical cavities," Phys. Rev. A 96, 053818 (2017) [download].

[15] You-Lin Chuang, Ite A. Yu, and RKL, "Quantum theory for pulse propagation in electromagnetically-induced-transparency media beyond the adiabatic approximation," Phys. Rev. A 91, 063818 (2015) [download].

[14] You-Lin Chuang, Ite A. Yu, and RKL, "Nonseparated states from squeezed dark-state polaritons in electromagnetically induced transparency media," J. Opt. Soc. Am. B 32, 1384 (2015) [download].

[13] E. S. Sedov, A. P. Alodjants, S. M. Arakelian, You-Lin Chuang, YuanYao Lin, Wen-Xing Yang, and RKL, "Tunneling-assisted optical information storage with lattice polariton solitons in cavity-QED arrays," Phys. Rev. A 89, 033828 (2014) [download].


[12] Shiang Fang, RKL, Daw-Wei Wang, "Quantum fluctuations and condensate fraction during time-of-flight expansion," Phys. Rev. A 82, 031601(R) (2010). [download]


[11] You-Lin Chuang and RKL, "Conditions to preserve quantum entanglement of quadrature fluctuation fields in electromagnetically induced transparency media," Opt. Lett. 34, 1537 (2009); also selected in Virtual Journal of Quantum Information 9, Issue 6 (2009) [download]

[10] Yinchieh Lai and RKL, "Entangled Quantum Nonlinear Schrodinger Solitons," Phys. Rev. Lett. 103, 013902 (2009); also selected in Virtual Journal of Nanoscale Science & Technology 20, Issue 2 (2009); and selected in Virtual Journal of Quantum Information 9, Issue 7 (2009) [download].

[9] RKL and Yinchieh Lai, "Quantum squeezing and correlation of self-induced transparency solitons," Phys. Rev. A 80, 033839 (2009) [download].

[8] RKL, Yinchieh Lai, and Boris A. Malomed, "Photon-number fluctuation and correlation of bound soliton pairs in mode-locked fiber lasers," Opt. Lett. 34, 3084 (2005) [download].

[7] RKL, Elena A. Ostrovskaya, Yuri S. Kivshar, and Yinchieh Lai, "Quantum-noise properties of matter-wave gap solitons," Phys. Rev. A 72, 033607 (2005) [download].

[6] RKL, Yinchieh Lai, and Yuri S. Kivshar, "Quantum correlations in soliton collisions," Phys. Rev. A 71, 035801 (2005); also selected in Virtual Journal of Quantum Information 5, Issue 4 (2005) [download].

[5] RKL, Yinchieh Lai, and Boris Malomed, "Generation of photon-number entangled soliton pairs through interactions," Phys. Rev. A 71, 013816 (2005); also selected in Virtual Journal of Quantum Information 5, Issue 2 (2005) [download].

[4] RKL, Yinchieh Lai, and Boris Malomed, "Quantum correlations in bound-soliton pairs and trains in fiber lasers," Phys. Rev. A 70, 063817 (2004); also selected in Virtual Journal of Quantum Information 5, Issue 1 (2005) [download].

[3] RKL and Yinchieh Lai, "Quantum theory of fiber Bragg grating solitons," J. Opt. B: Quantum and Semiclassical Optics 6, S638 (special issue 2004) in memoriam of Hermann Anton Haus, 1925-2003 [download].

[2] RKL and Yinchieh Lai, and Boris A. Malomed, "Quantum Fluctuations around Bistable Solitons in the cubic-quintic nonlinear Schrodinger equation," J. Opt. B: Quantum and Semiclassical Optics 6, 367 (2004) [download].


[1] RKL and Yinchieh Lai, "Amplitude-squeezed fiber-Bragg-grating solitons," Phys. Rev. A 69, 021801(R) (2004); also selected in Virtual Journal of Nanoscale Science & Technology 9, Issue 8 (2004) [download].


Next:

Quantum Metrology with Quantum Solitons !


"The Great Wave off Kanagawa (神奈川冲浪裏) ", from Japanese artist, Ukiyo-e painter (浮世繪), Katsushika Hokusai (葛飾北齋).

Targets:

Optical waves, water waves, quantum waves, and gravitational waves, all share the universal characteristics. In addition to interference, superposition, and propagation, now we have brought topology into this wave family.




Achievements:
  • We introduce the new concept of topological control based on the one-to-one correspondence between the number of wave packet oscillating phases and the genus of toroidal surfaces associated with the nonlinear Schrodinger equation solutions through Riemann theta functions [1].
  • We use split-ring resonators to demonstrate topologically protected edge states in the Su-Schieffer-Heeger (SSH) model experimentally, but in a slow-light wave with the group velocity down to ∼ 0.1 of light speed in free space [4].
  • By considering a cigar-shaped trapping potential elongated in a proper curvilinear coordinate, encoding a one-dimensional Andre-Aubry-Harper (AAH) grating, we discover a new form of wave localization which arises from the interplay of geometry and topological protection, in order to mimic the existence of an additional dimension for a physically realizable five-dimensional string [3].


[4] Yu-Han Chang, Raul A. Robles Robles, Vanna Chrismas Silalahi, Cen-Shawn Wu, Gang Wang, Giulia Marcucci, Laura Pilozzi, Claudio Conti, RKL, and Watson Kuo, "Direct Observation of Topological Protected Edge States in Slow-Light," submitted for publication (Apr. 2020); [arXiv: 2004.09282].

[3] Chun-Yan Lin, Giulia Marcucci, You-Lin Chuang, Gang Wang, Claudio Conti, and RKL, "Multidimensional topological strings by curved potentials: Simultaneous realization of mobility edge and topological protection," submitted for publication (Feb. 2020); [arXiv: 2002.03091].

[2] Hang Yu, En Guo Guan, Gang Wang, Jian Hua Jiang, Jun Hu, Jin Hui Wu, and RKL, "Synthesizing quantum spin Hall phase for ultracold atoms in bichromatic chiral optical ladders," Optics Express 28, 21072 (2020) [download];

[1] Giulia Marcucci, Davide Pierangeli, Aharon J. Agranat, RKL, Eugenio DelRe, and Claudio Conti, "Topological Control of Extreme Waves," Nature Comm. 10, 5090 (2019) [download]; Highlight by Nature Phys. 15, 1210 (2019): Tamed by Topology.  [link].

Next:


Targets:

Quantum phase transition (QPT) can only be accessed at absolute zero temperature by changing an external parameter or a coupling constant driven by quantum fluctuations. There have been intensive studies of QPTs in interacting many-body problems, originally for strongly correlated electronic systems in condensed matter physics, and more recently for a weakly interacting ultracold atomic system. Typically, it is difficult to control and probe such exotic quantum phenomena in strongly correlated systems of electrons.

Even though photons are non-interacting bosons, engineered composites of optical cavities, few-level atoms, and laser light can form a strongly interacting many-body system to study the concepts and methods in condensed matter physics from the viewpoint of quantum optics. In this case, a photonic condensed-matter analog could be realized with state-of-the-art photonic crystals embedded with high-Q defect cavities.






Achievements:
  • Instead of an infinite number of atoms in the thermodynamic limit, we study the ground states of a finite number of three-level atoms in electromagnetically induced transparency (EIT) media, in order to provide the connection not only to the Dicke model, but also to the Lipkin–Meshkov–Glick model [8].
  • We present a stability analysis of an interacting two-species Bose-Einstein condensate driven by a quantized field in the semiclassical limit. The quantized field is found to produce asymmetric dynamics for symmetric initial conditions for both Rabi oscillation and Josephson oscillation [5].
  • We extend the idea of quantum phase transitions of light in an atom-photon system with a Dicke-Bose-Hubbard model for an arbitrary number of two-level atoms. With a self-consistent method, we obtain a complete phase diagram for two two-level atoms on resonance, which indicates the transition from Mott insulator to superfluidity [1, 2].


[9] Hang Yu, En Guo Guan, Gang Wang, Jian Hua Jiang, Jun Hu, Jin Hui Wu, and RKL, "Synthesizing quantum spin Hall phase for ultracold atoms in bichromatic chiral optical ladders," Optics Express 28, 21072 (2020) [download];

[8] Raul A. Robles Robles and RKL, "Quantum phase transition of a finite number of atoms in electromagnetically induced transparency media," J. Opt. Soc. Am. B 37, 1388 (2020) [download].

[7] Raul A. Robles Robles, S. A. Chilingaryan, Blas M. Rodriguez-Lara, and RKL, "Ground state in the finite Dicke model for interacting qubits," Phys. Rev. A 91, 033819 (2015); Images also selected as the Kaleidoscope in Phys. Rev. A [download].




[6] Blas M. Rodríguez-Lara and RKL, "Classical dynamics of a two-species Bose-Einstein condensates in the presence of nonlinear master processes," Book chapter in "Spontaneous Symmetry Breaking, Self-trapping, and Josephson Oscillations," edited by Boris A. Malomed for the series in Progress in Optical Science and Photonics (Springer-Verlag Berlin Heidelburg, 2012) [Link].

[5] Blas M. Rodriguez-Lara and RKL, "Classical dynamics of a two-species condensate driven by a quantum field," Phys. Rev. E 84, 016225 (2011) [download].

[4] Blas M. Rodríguez-Lara and RKL, "Quantum phase transition of nonlinear light in the finite size Dicke Hamiltonian," J. Opt. Soc. Am. B 27, 2443 (2010); also selected in Virtual Journal of Quantum Information 10, Issue 12 (2010); and selected in Virtual Journal of Atomic Quantum Fluids 2, Issue 12 (2010) [download].

[3] Soi-Chan Lei, Tai-Kai Ng, and RKL, "Photonic analogue of Josephson effect in a dual-species optical-lattice cavity," Optics Express 18, 14586 (2010) [download].


[2] Soi-Chan Lei and RKL, "Quantum Phase Transitions of Light for Two-level Atoms," Optics and Photonics News Dec., 44 Optics in 2008: Quantum Phase Transitions of Light for Two-level Atoms [download].

[1] Soi-Chan Lei and RKL, "Quantum Phase Transitions of Light in the Dicke-Bose-Hubbard model," Phys. Rev. A 77, 033827 (2008)[download].

Targets:

Non-integrable and chaotic shapes of cavity can also support lasing modes. Once the shape of a resonator supports chaotic ray motions, localized eigenstates of the wave equation of electromagnetism, coined as scar modes, provide an alternative understanding in the correspondence between classical and quantum system.



Achievements:
  • we have demonstrated experimentally that a proper use of geometrical bends allows keeping the lasing on nonlinear waves at the same threshold. Specifically, curvature and nonlinearity together pin the wave localization and increase the degree of localization [9].
  • We report experimental observation of lasing on surface states, in the form of standing waves at the termination of a defect-free photonic crystal on top of vertical-cavity surface-emission lasers [8].
  • Instead of a direct transition from linear to nonlinear cavity modes, we demonstrate the existence of symmetry-breaking crescent waves without any analogs in the linear limit [7].
  • We report a direct method to observe higher-azimuthal-order whispering-gallery-like modes in vertical cavity surface emitting lasers (VCSELs) at room temperature, with an azimuthal number as large as 41 [3]
  • With microstructure patterns and near-field technologies, we investigate the formation of transverse optical patterns in GaAs-based VCSELs Lasing on chaotic modes [1].


[10] Yu-Chi Wang, Heng Li, Yu-Heng Hong, Kuo-Bin Hong, Fang-Chung Chen, Chia-Hung Hsu, RKL, Claudio Conti, Tsung Sheng Kao, and Tien-Chang Lu, "Flexible Organometal-Halide Perovskite Lasers for Speckle Reduction in Imaging Projection," ACS Nano 13, 5421 (2019) [download].

[9] Kou-Bin Hong, Chun-Yan Lin, Tsu-Chi Chang, Wei-Hsuan Liang, Ying-Yu Lai, Chien-Ming Wu, You-Lin Chuang , Tien-Chang Lu, Claudio Conti, and RKL, "Lasing on nonlinear localized waves in curved geometry," Optics Express 25, 29068 (2017) [download].

[8] Yonan Su, Chun-Yan Lin, Ray-Ching Hong, Wen-Xing Yang, Chien-Chung Jeng, Tien-Chang Lu, and RKL "Lasing on surface states in vertical-cavity surface-emission lasers," Opt. Lett. 39, 5582 (2014) [download].

[7] Chandroth P. Jisha, YuanYao Lin, Tsin-Dong Lee, and RKL, "Crescent Waves in Optical Cavities," Phys. Rev. Lett. 107, 183902 (2011) [download].

[6] Kuan-Hsien Kuo, YuanYao Lin, and RKL, "Thresholdless crescent waves in an elliptical ring," Opt. Lett. 38, 1077 (2013) [download].

[5] YuanYao Lin and RKL, "Symmetry-breaking instabilities of generalized elliptical solitons, " Opt. Lett. 33, 1377 (2008) [download].

[4] Wen-Xing Yang, Yuan-Yao Lin, Tsin-Dong Lee, RKL, and Yuri S. Kivshar, "Nonlinear localized modes in bandgap microcavities," Opt. Lett. 35, 3207 (2010) [download].

[3] Ching-Jen Cheng, YuanYao Lin, Chih-Yao Chen, Tsin-Dong Lee, and RKL, "Lasing on higher-azimuthal-order modes in vertical cavity surface emitting lasers at room temperature," Appl. Phys. B 97, 619 (2009) [download].

[2] Yuan Yao Lin, Chih-Yao Chen, Wei Chien, Jin-Shan Pan, Tsin-Dong Lee, and RKL, "Enhanced directional lasing by the interference between stable and unstable periodic orbits," Appl. Phys. Lett. 94, 221112 (2009); Images also appear in Optics & Photonics News November issue (Winner in the 2008 After Image Photon Contest) [download].

[1] Tsin-Dong Lee, Chih-Yao Chen, YuanYao Lin, Ming-Chiu Chou, Te-ho Wu, and RKL, "Surface-Structure-Assisted Chaotic Mode Lasing in Vertical Cavity Surface Emission Lasers," Phys. Rev. Lett. 101, 084101 (2008); Images also appear in Optics & Photonics News November issue (Winner in the 2008 After Image Photon Contest) [download].

Nonlinear Dispersion:

[2] Jen-Hsu Chang, Chun-Yan Lin, and RKL, "Nonlinear Effective Masses Schrodinger Equation with Harmonic Oscillator," submitted for publication (Aug. 2019); [arXiv: 1911.12477].

[1] Chun-Yan Lin, Jen-Hsu Chang, Gershon Kurizki, and RKL, "Solitons supported by intensity-dependent dispersion," Opt. Lett. 45, 1471 (2020) [download].


Soliton Metrology:

[3] D. V. Tsarev, A. P. Alodjants, T. V. Ngo, and RKL, "Mesoscopic quantum superposition states of weakly-coupled matter-wave solitons," submitted for publication (June 2020).

[2] D. V. Tsarev, T. V. Ngo, RKL, and A. P. Alodjants, "Nonlinear quantum metrology with moving matter-wave solitons," New J. Phys. 21, 083041 (2019) [download].

[1] D. V. Tsarev, S. M. Arakelian, You-Lin Chuang, RKL, and A. P. Alodjants, "Quantum metrology beyond Heisenberg limit with entangled matter wave solitons," Optics Express 26, 19583 (2018) [download].


Nonlinear Control and Soliton Steering:

[7] Giulia Marcucci, Davide Pierangeli, Aharon J. Agranat, RKL, Eugenio DelRe, and Claudio Conti, "Topological Control of Extreme Waves," Nature Comm. 10, 5090 (2019) [download]; Highlight by Nature Phys. 15, 1210 (2019): Tamed by Topology.  [link].

[6] Ray-Ching Hong, Chun-Yan Lin, You-Lin Chuang, Chien-Ming Wu, Yonan Su, Jeng Yi Lee, Chien-Chung Jeng, Ming-Feng Shih, and RKL, "Resonance in modulation instability from non-instantaneous nonlinearities," Opt. Lett. 43, 3329 (2018) [download].

[5] Chien-Chung Jeng, Yonan Su, Ray-Ching Hong, and RKL, "Control modulation instability in photorefractive crystals by the intensity ratio of background to signal fields," Optics Express 23, 10266 (2015) [download].

[4] Chandroth P. Jisha, Alessandro Alberucci, RKL, and Gaetano Assanto, "Deflection and trapping of spatial solitons in linear photonic potentials," Optics Express 21, 18646 (2013) [download].

[3] Alessandro Alberucci, Chandroth P. Jisha, RKL, and Gaetano Assanto, "Soliton self-routing in a finite photonic potential," Opt. Lett. 38, 2071(2013) [download].

[2] Ching-Hao Wang, Tzay-Ming Hong, RKL, and Daw-Wei Wang, "Particle-wave duality in quantum tunneling of a bright soliton," Optics Express 20, 22675 (2012) [download].

[1] Chandroth P. Jisha, Alessandro Alberucci, RKL, and Gaetano Assanto, "Optical Solitons and Wave-Particle Duality," Opt. Lett. 36, 1848 (2011) [download].


Elliptical Solitons and Vortex:

[4] Kou-Bin Hong, Chun-Yan Lin, Tsu-Chi Chang, Wei-Hsuan Liang, Ying-Yu Lai, Chien-Ming Wu, You-Lin Chuang, Tien-Chang Lu, Claudio Conti, and RKL, "Lasing on nonlinear localized waves in curved geometry," Optics Express 25, 29068 (2017) [download].

[3] Kuan-Hsien Kuo, YuanYao Lin, and RKL, "Thresholdless crescent waves in an elliptical ring," Opt. Lett. 38, 1077 (2013) [download].

[2] Chandroth P. Jisha, YuanYao Lin, Tsin-Dong Lee, and RKL "Crescent waves in optical cavities," Phys. Rev. Lett. 107, 183902 (2011) [download].

[1] YuanYao Lin and RKL, "Symmetry-breaking instabilities of generalized elliptical solitons," Opt. Lett. 33, 1377 (2008) [download].


Nonlocal nonlinearity:

[9] L. Chen, Q. Wang, Ming Shen, H. Zhao, YuanYao Lin , C.-C. Jeng, RKL, and W. Krolikowski, "Nonlocal dark solitons under competing cubic-quintic nonlinearities,"Opt. Lett. 38, 13 (2013) [download].

[8] Ming Shen, J.-J. Zheng, Q. Kong, YuanYao Lin , C.-C. Jeng, RKL, and W. Krolikowski, "Stabilization of counter-rotating vortex pairs in nonlocal media," Phys. Rev. A 86, 013827 (2012) [download].

[7] Ming Shen, YuanYao Lin, Chien-Chung Jeng, and RKL, "Vortex pairs in nonlocal nonlinear meida," J. Opt. 14, 065204 (2012) [download].

[6] Ming Shen, Qian Kong, Chien-Chung Jeng, Li-Juan Ge, RKL, and Wieslaw Krolikowski, "Instability suppression of vector-necklace-ring solitons in nonlocal media," Phys. Rev. A 83, 023825 (2011) [download].

[5] Kuan-Hsien Kuo, YuanYao Lin, RKL, and Boris A. Malomed,"Gap solitons under competing local and nonlocal nonlinearities," Phys. Rev. A 83, 053838 (2011) [download].

[4] YuanYao Lin, Chandroth P. Jisha, Ching-Jen Jeng, RKL, and Boris A. Malomed, "Gap solitons in optical lattices embedded into nonlocal media," Phys. Rev. A 81, 063803 (2010) [download].

[4] YuanYao Lin, RKL, and Boris A. Malomed, "Bragg solitons in nonlocal nonlinear media," Phys. Rev. A 80, 013838 (2009) [download].

[3] YuanYao Lin, I-Hong Chen, and RKL, "Breather-like Collision of Gap Solitons in Bragg Gap Regions within Nonlocal Nonlinear Photonic Crystals," J. Opt. A: Pure and Applied Optics 10, 044017 (special issue, 2008); selected papers from Optical MEMS and Nanophotonics 2007 (12–16 Aug. 2007, Hualien, Taiwan) [download].

[2] YuanYao Lin, RKL, and Yuri S. Kivshar, "Suppression of soliton transverse instabilities in nonlocal nonlinear media," J. Opt. Soc. Am. B 25, 576 (2008) [download].

[1] YuanYao Lin and RKL, "Dark-bright soliton pairs in nonlocal nonlinear media," Optics Express 15, 8781 (2007) [download].


Dipolar Bose-Einstein condensates:

[2] Xing-You Chen, You-Lin Chuang, Chun-Yan Lin, Chien-Ming Wu, Yongyao Li, Boris A. Malomed, and RKL, "Magic tilt angle for stabilizing two-dimensional solitons by dipole-dipole interactions," Phys. Rev. A 96, 043631 (2017) [download].

[1] YuanYao Lin, RKL, Yee-Mou Kao, and Tsin-Fu Jiang, "Band structures of a dipolar Bose-Einstein condensate in one-dimensional lattices," Phys. Rev. A 78, 023629 (2008) [download].


Solitons in plasmonics:

[1] YuanYao Lin, RKL, and Yuri S. Kivshar, "Transverse instability of transverse-magnetic solitons and nonlinear surface plasmons," Opt. Lett. 34, 2982 (2009) [download].


Solitons in cavity-QED:

[2] E. S. Sedov, A. P. Alodjants, S. M. Arakelian, You-Lin Chuang, YuanYao Lin, Wen-Xing Yang, and RKL, "Tunneling-assisted optical information storage with lattice polariton solitons in cavity-QED arrays," Phys. Rev. A 89, 033828 (2014) [download].

[1] I-Hong Chen, YuanYao Lin, Y.-C. Lai, E. S. Sedov, A. P. Alodjants, S. M. Arakelian, and RKL, "Solitons in cavity-QED arrays containing interacting qubits," Phys. Rev. A 86, 023829 (2012) [download].


Slow-light Solitons:

[8] YuanYao Lin, I-Hong Chen, and RKL, "Few-cycle Self-Induced-Transparency Solitons," Phys. Rev. A 83, 043828 (2011) [download].

[7] RKL and Yinchieh Lai, "Quantum squeezing and correlation of self-induced transparency solitons," Phys. Rev. A 80, 033839 (2009) [download].

[6] Wen-Xing Yang, Ai-Xi Chen, RKL, and Ying Wu, "Matched slow optical soliton pairs via biexciton coherence in quantum dots," Phys. Rev. A 84, 013835 (2011) [download].

[5] Wen-Xing Yang, Ai-Xi Chen, Liu-Gang Si, Kaijun Jiang, Xiaoxue Yang, and RKL, "Three-coupled ultraslow temporal solitons in a five-level tripod atomic system," Phys. Rev. A 81, 023814 (2010) [download].

[4] Wen-Xing Yang, Ting-Ting Zha, and RKL, "Giant Kerr nonlinearities and slow optical solitons in coupled double quantum-wells, " Phys. Lett. A 374, 355 (2009) [download].

[3] Wen-Xing Yang, Jing-Min Hou, YuanYao Lin, and RKL, "Detuning management of optical solitons in coupled quantum wells," Phys. Rev. A 79, 033825 (2009) [download].

[2] Wen-Xing Yang and RKL, "Slow optical solitons via intersubband transitions in a semiconductor quantum well," EuroPhys. Lett. 83, 14002 (2008) [download].

[1] Wen-Xing Yang, Jing-Min Hou, and RKL, "Ultraslow bright and dark solitons in semiconductor quantum wells," Phys. Rev. A 77, 033838 (2008) [download].
 
"Starry Night" Vincent Van Gogh

Targets:

"It is looking at things for a long time that ripens you and gives you a deeper meaning."




Achievements:
  • We show by experimental measurements and theoretical analyses that there exists an optical pattern transition from optical modulation instability to transverse instability in nonlinear media, which provides a step toward studying spatial-temporal pattern formations in higher dimensions for optical bullets, fluid dynamics, and plasma physics [2].
  • Pattern transitions in the form of stripes, reoriented stripes, hexagons, and spots are revealed experimentally and theoretically for incoherent beams in non-instantaneous anisotropic photorefractive crystals, with demonstrations in the boundary of mixed-phase states [5].
  • To explore resonance phenomena in the nonlinear region, we show by experimental measurements and theoretical analyses that resonance happens in modulation instability from non-instantaneous nonlinearities in photorefractive crystals [7].


[8] Giulia Marcucci, Davide Pierangeli, Aharon J. Agranat, RKL, Eugenio DelRe, and Claudio Conti, "Topological Control of Extreme Waves," Nature Comm. 10, 5090 (2019) [download]; Highlight by Nature Phys. 15, 1210 (2019): Tamed by Topology.  [link].

[7] Ray-Ching Hong, Chun-Yan Lin, You-Lin Chuang, Chien-Ming Wu, Yonan Su, Jeng Yi Lee, Chien-Chung Jeng, Ming-Feng Shih, and RKL, "Resonance in modulation instability from non-instantaneous nonlinearities," Opt. Lett. 43, 3329 (2018) [download].

[6] Chien-Chung Jeng, Yonan Su, Ray-Ching Hong, and RKL, "Control modulation instability in photorefractive crystals by the intensity ratio of background to signal fields," Optics Express 23, 10266 (2015) [download].

[5] Ming Shen, Yonan Su, Ray-Ching Hong, YuanYao Lin, Chien-Chung Jeng, Min-Feng Shih, and RKL, "Observation of phase boundaries in spontaneous optical pattern formation," Phys. Rev. A 91, 023810 (2015) [download].

[4] Chandroth P. Jisha, Kuei-Chu Hsu, YuanYao Lin , Ja-Hon Lin, Chien-Chung Jeng, and RKL, "Tunable pattern transitions in a liquid-crystal-monomer mixture using two-photon polymerization," Opt. Lett. 37, 4931 (2012) [download].

[3] Chandroth P. Jisha, Kuei-Chu Hsu, YuanYao Lin , Ja-Hon Lin, Kai-Ping Chuang, Chao-Yi Tai, and RKL, "Phase separation and pattern instability of laser-induced polymerization in liquid-crystal-monomer mixtures," Optical Mateirals Express 1, 1494 (2011); article in Feature issue on Liquid Crystal Materials for Photonic Applications [download].

[2] Chien-Chung Jeng, YuanYao Lin, Ray-Ching Hong, and RKL, "Optical Pattern Transitions from Modulation to Transverse Instabilities in Photorefractive Crystals," Phys. Rev. Lett. 102, 153905 (2009) [download].

[1] YuanYao Lin, RKL, and Yuri S. Kivshar, "Suppression of soliton transverse instabilities in nonlocal nonlinear media," J. Opt. Soc. Am. B 25, 576 (2008) [download].

Next:

 
Targets:

The study of scattering (i.e., how a single receiver or scatterer responds to an external stimulus) is relevant to a wide range of subjects that are, in some way, related to wave physics (e.g., electromagnetic radiation, elastic waves, thermal diffusion, and quantum physics).

Inspired by the recent developments of meta-materials and state-of-the-art nano-optical technologies, the design and fabrication of functional scatterers with unusual scattering states (including invisible cloaking, resonant scattering, coherent perfect absorption, superscattering, and superabsorbers) have shown great potential for applications in biochemistry, green- energy generation, ultrasensitive detection sensors, and optical microscopy.



   
Achievements:
  • Taking invisibility in an entirely different direction, we suggest it may be possible to hide objects from quantum mechanical interactions at the nanoscale. Mover, we also have worked out how to cloak a region of space from the quantum world, thereby shielding it from reality itself [1].
  • We provide a universal map, based on power conservation, revealing all allowable scattering states in a single plot and can be used to inversely design field-controllable structures [5, 6].
  • By demonstrating the extinction cross sections with the power conservation intrinsically embedded in the phase diagram, we give an alternative interpretation for Kerker’s first and second conditions, associated with zero backward scattering (ZBS) and nearly zero forward scattering (NZFS). Physical boundaries and limitations for these directional radiations are illustrated along with a generalized Kerker’s condition with implicit parameters [8].
  • We experimentally demonstrate the thickness effects on light absorption and scattering for nanoparticles in the shape of hollow spheres [4], with applications to dye sensitized solar cells [3] and TiO2 photocatalysis [2].


[12] Jeng Yi Lee, Lujun Huang, Lei Xu, Andrey E. Miroshnichenko, and RKL, "Broadband Control on Scattering Events with Interferometric Coherent Waves," submitted for publication (Mar. 2020).[arXiv: 2003.00252].

[11] Jeng Yi Lee, Yueh-Heng Chung, Andrey E. Miroshnichenko, and RKL, "Linear control of light scattering with multiple coherent waves excitation," Opt. Lett. 44, 5310 (2019) [download].

[10] Jeng Yi Lee and RKL, "Exploring matter wave scattering by means of the phase diagram," EuroPhys. Lett. 124, 30006 (2018) [download].

[9] Jeng Yi Lee, Andrey E. Miroshnichenko, and RKL, "Simultaneously nearly zero forward and nearly zero backward scattering objects," Optics Express 26, 30393 (2018) [download].

[8] Jeng Yi Lee, Andrey E. Miroshnichenko, and RKL, "Reexamination of Kerker’s conditions by means of the phase diagram," Phys. Rev. A 96, 043846 (2017) [download].

[7] Jeng Yi Lee, Andrey E. Miroshnichenko, and RKL, "Designing quantum resonant scatterers at subwavelength scale," Phys. Lett. A 381, 2860 (2017) [download].





[6] Jeng Yi Lee and RKL, "Phase diagram for investigating the scattering properties of passive scatterers," reported in SPIE Newsroom (May 2017) [download].

[5] Jeng Yi Lee and RKL, "Phase diagram for passive electromagnetic scatterers," Optics Express 24, 6480 (2016) [download].

[4] Jeng-Yi Lee, Min-Chiao Tsai, Po-Chin Chen, Tin-Tin Chen, Kuei-Lin Chan, Chi-Young Lee, and RKL, "Thickness effect on light absorption and scattering for nanoparticles in shape of hollow-spheres," J. Phys. Chem: C 119, 25754 (2015) [download].

[3] Min-Chiao Tsai, Jeng-Yi Lee, Ya-Chen Chang, Min-Han Yang, Tin-Tin Chen, I-Chun Chang, Pei-Chi Lee, Hsin-Tien Chiu, RKL, and Chi-Young Lee, "Scattering resonance enhanced dye absorption of dye sensitized solar cells at optimized hollow structure size," J. Power Sources 268, 1 (2014) [download].

[2] Min-Chiao Tsai, Jeng-Yi Lee, Po-Chin Chen, Yuan-Wei Chang, Ya-Chen Chang, Min-Han Yang, Hsin-Tien Chiu, I-Nan Lin, RKL, and Chi-Young Lee, "Effects of size and shell thickness of TiO2 hierarchical hollow spheres on photocatalytic behavior: An experimental and theoretical study," Applied Catalysis B: Environmental 147, 499 (2014) [download].




[1] Jeng Yi Lee and RKL, "Hiding the interior region of core-shell nano-particles with quantum invisible cloaks," Phys. Rev. B 89, 155425 (2014) [download]; reported in Physics Today News Picks: Invisibility cloaks theorized to work for quantum effects.  [link-1]; MIT Technology Review / ExtremeTech: Phase diagram for investigating the scattering properties of passive scatterers.  [link-2] [link-3]


Flexible Perovskite Lasers:

[1] Yu-Chi Wang, Heng Li, Yu-Heng Hong, Kuo-Bin Hong, Fang-Chung Chen, Chia-Hung Hsu, RKL, Claudio Conti, Tsung Sheng Kao, and Tien-Chang Lu, "Flexible Organometal-Halide Perovskite Lasers for Speckle Reduction in Imaging Projection," ACS Nano 13, 5421 (2019) [download].




Slow-light Lasers:

[1] Chia-Sheng Chou, RKL, Peng-Chun Peng, Hao-chung Kuo, Gray Lin, Hung-Ping Yang and Jim Y. Chi, "A Simple Model for Cavity Enhanced Slow Lights in Vertical Cavity Surface Emission Lasers," J. Opt. A: Pure and Applied Optics 10, 044016 (special issue, 2008); selected papers from Optical MEMS and Nanophotonics 2007 (12–16 Aug. 2007, Hualien, Taiwan) [download].




Hollow-sphere nano-particles:

[3] Jeng-Yi Lee, Min-Chiao Tsai, Po-Chin Chen, Tin-Tin Chen, Kuei-Lin Chan, Chi-Young Lee, and RKL, "Thickness effect on light absorption and scattering for nanoparticles in shape of hollow-spheres," J. Phys. Chem: C 119, 25754 (2015) [download].

[2] Min-Chiao Tsai, Jeng-Yi Lee, Ya-Chen Chang, Min-Han Yang, Tin-Tin Chen, I-Chun Chang, Pei-Chi Lee, Hsin-Tien Chiu, RKL, and Chi-Young Lee, "Scattering resonance enhanced dye absorption of dye sensitized solar cells at optimized hollow structure size," J. Power Sources 268, 1 (2014) [download].

[1] Min-Chiao Tsai, Jeng-Yi Lee, Po-Chin Chen, Yuan-Wei Chang, Ya-Chen Chang, Min-Han Yang, Hsin-Tien Chiu, I-Nan Lin, RKL, and Chi-Young Lee, "Effects of size and shell thickness of TiO2 hierarchical hollow spheres on photocatalytic behavior: An experimental and theoretical study," Applied Catalysis B: Environmental 147, 499 (2014) [download].



PT-symmetric photonics:

[1] Yi-Chan Lee, Jibing Liu, You-Lin Chuang, Min-Hsiu Hsieh, and RKL, "Passive PT-symmetric couplers without complex optical potentials," Phys. Rev. A 92, 053815 (2015) [download].




Absolute frequency optical clock:



[1] Chien-Ming Wu, Tze-Wei Liu, Ming-Hsuan Wu, RKL, and Wang-Yau Cheng, "Absolute frequency of cesium 6S–8S 822 nm two-photon transition by a high-resolution scheme," Opt. Lett. 38, 3186 (2013) [download]; selected for Spotlight on Optics



Laser-induced polymerization:

[2] Chandroth P. Jisha, Kuei-Chu Hsu, YuanYao Lin , Ja-Hon Lin, Chien-Chung Jeng, and RKL, "Tunable pattern transitions in a liquid-crystal-monomer mixture using two-photon polymerization," Opt. Lett. 37, 4931 (2012) [download].

[1] Chandroth P. Jisha, Kuei-Chu Hsu, YuanYao Lin , Ja-Hon Lin, Kai-Ping Chuang, Chao-Yi Tai, and RKL, "Phase separation and pattern instability of laser-induced polymerization in liquid-crystal-monomer mixtures," Optical Mateirals Express 1, 1494 (2011); article in Feature issue on Liquid Crystal Materials for Photonic Applications [download].




Lagrange Multiplier Constrained Optimization Method:

[3] Cheng-Ling Lee, RKL, and Yee-Mou Kao, "Lagrange-multiplier-constrained optimization for designing narrowband dispersionless fiber Bragg gratings," Optical Engineering 47, 015005 (2008) [download].

[2] Cheng-Ling Lee, RKL, and Yee-Mou Kao, "Synthesis of long-period fiber gratings with a Lagrange multiplier optimization method," Optics Comm. 281, 61 (2008) [download].

[1] Cheng-Ling Lee, RKL, and Yee-Mou Kao, "Design of multichannel DWDM fiber Bragg grating filters by Lagrange multiplier constrained optimization," Optics Express 14, 11002 (2006) [download].

Grants/Projects:


Onging Grants/Projects:
  • Metrology and Application of Quantum Noise Squeezing 量子噪音壓縮的度量與應用:
    MOST: 109-2112-M-007-019-MY3 (Aug. 2020 - Jul. 2023)


  • Filter cavity experiment:
    KAGRA, R&D Project (Apr. 2019 - Mar. 2021)


  • Filter cavity experiments for frequency dependent squeezed light source for KAGRA:
    The University of Tokyo, the Institute for Cosmic Ray Research (ICRR), Inter-University Research Program (Apr. 2019 - Mar. 2021)


  • Center for Quantum Technology 前瞻量子科技研究中心:
    MOST and MOE (Mar. 2019 - Feb. 2024)


  • Scalable Quantum Photonic Chip with Error-Code Correction 矽基量子光電晶片:
    MOST (Nov. 2019 - Dec. 2024)


  • Correlation Spectra in Nonlinear Modulational Instabilities and Rogue Waves:
    US Navy, Office of Naval Research (ONR), Foreign Research Grant Award (Jan. 2019 - Jan. 2022)


  • Machine Learning for Hybrid Quantum Information Processing and Metrology 機器學習用在混合式量子訊息處理與量子度量衡:
    Russia Foundation for Basic Research (RFBR)-MOST (Jan. 2019 - Dec. 2021)


  • Many Body Physics and Quantum Optics for Quantum Gases and Artificial Atoms:
    NCTS, Thematic Group (Aug. 2014 - Jul. 2021)



  • Generation and Measurement on Squeezed Cats 壓縮貓態的產生與量測:
    MOST (Aug. 2016 - Jul. 2020)


  • Geometric control of extreme waves 極限光波的幾何操控:
    Italian National Research Council (CNR)-MOST (Jan. 2016 - Dec. 2018)


  • Theoretical and experimental study of polaritons in low dimensional micro- and nanostructures for spatially distributed quantum information 低維度微奈米結構中的極化子理論與實驗研究,與其在空間分散式量子訊息處理:
    Russia Foundation for Basic Research (RFBR)-MOST (Jan. 2015 - Dec. 2017)


  • Theoretical and Experimental Study of Bosonic Lasers and Quantum Sources of Non-classical Matter Fields in Semiconductor Micro- and Nanostructures 微奈米結構玻色子雷射與非古典量子源之研究:
    Russia Foundation for Basic Research (RFBR)-MOST (Jan. 2015 - Dec. 2017)


  • Thermo-dynamical properties in nonlinear optical systems 非線性光學系統中的熱力學特性:
    MOST (Aug. 2012 - Jul. 2016)


  • Quantum information processing with polaritons in solid state and atomic micro- and nanostructures 原子與固態微奈米結構中極化子的量子資訊處理:
    Russia Foundation for Basic Research (RFBR)-MOST (Jan. 2000 - Dec. 2013)


  • Nonlinear dynamics and quantum optics in dissipative systems 耗散系統中的非線性動力與量子光學 :
    MOST (Aug. 2009 - Jul. 2012)


  • Few-photon quantum nonlinear optics 少光子數之量子非線性光學:
    MOST (Aug. 2006 - Jul. 2009)


  • Quantum state transfer from optical solitons to atoms ant its application to quantum technologies 光孤子與原子間的量子狀態轉換及其在量子技術上的應用:
    MOST (Aug. 2005 - Jul. 2006)

  • Publications


    Index
    • Google Scholar:  [link]
      Citations: 2564;   h-index: 27;   i10-index: 72;


    • Web of Science:  [link]
      Citations: 2105;   h-index: 24;   Publications: 168;



    Summary:
    • Physical Review Letters:   7
    • Nature Communications:   1



    • Physical Review A:   41
    • Optics Letters:   17
    • Optics Express:   19



    • Physical Review B:   1
    • Physical Review E:   1
    • New J. Physics:   1
    • Applied Physics Letters:   1
    • ACS Nano:   1
    • Advanced Quantum Technologies:   1
    • Living Reviews in Relativity:   1



    • J. Opt. Soc. Am. B:   9
    • J. Physics B:   1
    • EuroPhysics Letters :   1
    • Laser Physics Letters/Laser Physics:   2+3
    • J. Optics (A/B):   6
    • Optics Communications:   6

    Chronological Order


    [155] D. V. Tsarev, A. P. Alodjants, T. V. Ngo, and RKL, "Mesoscopic quantum superposition states of weakly-coupled matter-wave solitons," submitted for publication (June 2020).

    [154] The KAGRA collaboration, "Overview of KAGRA: Detector design and construction history," submitted for publication (May 2020); [arXiv: 2005.05574].

    [153] Yu-Han Chang, Raul A. Robles Robles, Vanna Chrismas Silalahi, Cen-Shawn Wu, Gang Wang, Giulia Marcucci, Laura Pilozzi, Claudio Conti, RKL, and Watson Kuo, "Direct Observation of Topological Protected Edge States in Slow-Light," submitted for publication (Apr. 2020); [arXiv: 2004.09282].

    [152] Jeng Yi Lee, Lujun Huang, Lei Xu, Andrey E. Miroshnichenko, and RKL, "Broadband Control on Scattering Events with Interferometric Coherent Waves," submitted for publication (Mar. 2020).[arXiv: 2003.00252].

    [151] Hai Wang, RKL, Manish Kumar Shukla, Indranil Chakrabarty, Shaoming Fei, and Junde Wu, "Quantum Channels as Temporal Correlations in Quantum Mechanics," submitted for publication (Feb. 2020); [arXiv: 1910.05694].

    [150] Jen-Hsu Chang, Chun-Yan Lin, and RKL, "Nonlinear Effective Masses Schrodinger Equation with Harmonic Oscillator," submitted for publication (Aug. 2019); [arXiv: 1911.12477].

    [149] You-Lin Chuang, RKL, and Ite A. Yu, "Generation of quantum entanglement based on electromagnetically induced transparency media," submitted for publication (April 2020); [arXiv: 1906.12025].

    [148] Hai Wang, RKL, and Junde Wu, "Discrete-time modeling of quantum evolutions, the energy-time uncertainty relation and general extensions in the entangled history formalism," submitted for publication (Jan. 2020).[arXiv: 1908.02935].

    [147] Chun-Yan Lin, Giulia Marcucci, You-Lin Chuang, Gang Wang, Claudio Conti, and RKL, "Multidimensional topological strings by curved potentials: Simultaneous realization of mobility edge and topological protection," submitted for publication (Feb. 2020); [arXiv: 2002.03091].


     
    [147] Yuhang Zhao, Naoki Aritomi, Eleonora Capocasa, Matteo Leonardi, Marc Eisenmann, Yuefan Guo, Eleonora Polini, Akihiro Tomura, Koji Arai, Yoichi Aso, Yao-Chin Huang, RKL, Harald Luck, Osamu Miyakawa, Pierre Prat, Ayaka Shoda, Matteo Tacca, Ryutaro Takahashi, Henning Vahlbruch, Marco Vardaro, Chien-Ming Wu, Matteo Barsuglia, and Raffaele Flaminio, "Frequency-dependent squeezed vacuum source for broadband quantum noise reduction in advanced gravitational-wave detectors," Phys. Rev. Lett. 124, 171101 (2020) [download];   Editors' Suggestion; Featured in Physics [download].

    [146] Alexey A. Melonikov, Leonid E. Fedichkin, RKL, and Alexander Alodjants, "Machine learning transfer efficiencies for noisy quantum walks," Adv. Quant. Tech. 3,1900115 (2020) [download];   Back Cover for Adv. Quantum Technol. 4/2020.  [link]


    [145] Li-Yi Hsu, Ching-Yi Lai, You-Chia Chang, Chien-Ming Wu, and RKL, "Carrying an arbitrarily large amount of information using a single quantum particle," Phys. Rev. A 102, 022620 (2020); [download].

    [144] Chun-Yan Lin, Jen-Hsu Chang, Gershon Kurizki, and RKL, "Solitons supported by intensity-dependent dispersion," Opt. Lett. 45, 1471 (2020) [download].

    [143] Hang Yu, En Guo Guan, Gang Wang, Jian Hua Jiang, Jun Hu, Jin Hui Wu, and RKL, "Synthesizing quantum spin Hall phase for ultracold atoms in bichromatic chiral optical ladders," Optics Express 28, 21072 (2020) [download];

    [142] Raul A. Robles Robles and RKL, "Quantum phase transition of a finite number of atoms in electromagnetically induced transparency media," J. Opt. Soc. Am. B 37, 1388 (2020) [download].

    [141] The LIGO Scientific Collaboration, the Virgo Collaboration, and the KAGRA collaboration, "Prospects for Observing and Localizing Gravitational-Wave Transients with Advanced LIGO, Advanced Virgo and KAGRA," Living Reviews in Relativity (accepted, May 2020); [arXiv: 1304.0670].

    [140] The KAGRA collaboration, "Overview of KAGRA: Detector design and construction history," Prog. Theo. Exp. Phys. (PTEP) (accepted, 2020); [arXiv: 2005.05574].

    [139] The KAGRA collaboration, "Overview of KAGRA : KAGRA science," Prog. Theo. Exp. Phys. (PTEP) (accepted, 2020).

    [138] The KAGRA collaboration, "Application of independent component analysis to the iKAGRA data," Prog. Theo. Exp. Phys. (PTEP) 2020, 053F01 (2020); [download].

    [137] The KAGRA collaboration, "An arm length stabilization system for KAGRA and future gravitational-wave detectors," Class. Quantum Grav. 37, 035004 (2020) [download].


    [136] Minyi Huang, RKL, Lijian Zhang, Shao-Ming Fei, and Junde Wu, "Simulating broken PT-symmetric Hamiltonian systems by weak measurement," Phys. Rev. Lett. 123, 080404 (2019) [download]. [citations > 10]


    [135] Giulia Marcucci, Davide Pierangeli, Aharon J. Agranat, RKL, Eugenio DelRe, and Claudio Conti, "Topological Control of Extreme Waves," Nature Comm. 10, 5090 (2019) [download]; Highlight by Nature Phys. 15, 1210 (2019): Tamed by Topology.  [link]. [citations > 10]

    [134] Jeng Yi Lee, Yueh-Heng Chung, Andrey E. Miroshnichenko, and RKL, "Linear control of light scattering with multiple coherent waves excitation," Opt. Lett. 44, 5310 (2019) [download].

    [133] D. V. Tsarev, T. V. Ngo, RKL, and A. P. Alodjants, "Nonlinear quantum metrology with moving matter-wave solitons," New J. Phys. 21, 083041 (2019) [download].

    [132] Popo Yang, Ivan F. Valtierra, Andrei B. Klimov, Shin-Tza Wu, RKL, and Luis L. Sanchez-Soto, and Gerd Leuchs, "The Wigner flow on the sphere," Physica Scripta 94, 044001 (2019); for the New Focus issue: Quantum Optics and Beyond- in honour of Wolfgang Schleich [download].

    [131] Yu-Chi Wang, Heng Li, Yu-Heng Hong, Kuo-Bin Hong, Fang-Chung Chen, Chia-Hung Hsu, RKL, Claudio Conti, Tsung Sheng Kao, and Tien-Chang Lu, "Flexible Organometal-Halide Perovskite Lasers for Speckle Reduction in Imaging Projection," ACS Nano 13, 5421 (2019) [download]. [citations > 10]


    [116] Chung-Yun Hsieh and RKL, "Work extraction and fully entangled fraction," Phys. Rev. A 96, 012107 (2017) [download]; Phys. Rev. A 97, 059904(E) (2018) [Erratum].

    [130] Ray-Ching Hong, Chun-Yan Lin, You-Lin Chuang, Chien-Ming Wu, Yonan Su, Jeng Yi Lee, Chien-Chung Jeng, Ming-Feng Shih, and RKL, "Resonance in modulation instability from non-instantaneous nonlinearities," Opt. Lett. 43, 3329 (2018) [download].

    [129] Hua Li Chen, Gang Wang, and RKL, "Nearly complete survival of an entangled biphoton through bound states in continuum in disordered photonic lattices," Optics Express 26, 33205 (2018) [download].

    [128] Jeng Yi Lee, Andrey E. Miroshnichenko, and RKL, "Simultaneously nearly zero forward and nearly zero backward scattering objects," Optics Express 26, 30393 (2018) [download]. [citations > 10]

    [127] D. V. Tsarev, S. M. Arakelian, You-Lin Chuang, RKL, and A. P. Alodjants, "Quantum metrology beyond Heisenberg limit with entangled matter wave solitons," Optics Express 26, 19583 (2018) [download]. [citations > 10]

    [126] You-Lin Chuang, Ziauddin, and RKL, "Realization of simultaneously parity-time-symmetric and parity-time-antisymmetric susceptibilities along the longitudinal direction in atomic systems with all optical controls," Optics Express 26, 21969 (2018) [download];

    [125] Rahmatullah, Ziauddin, You-Lin Chuang, RKL, and Sajid Qamar, "Sub-microwave wavelength localization of Rydberg superatoms," J. Opt. Soc. Am. B 35, 2588 (2018) [download].

    [124] Jeng Yi Lee and RKL, "Exploring matter wave scattering by means of the phase diagram," EuroPhys. Lett. 124, 30006 (2018) [download].

    [123] Rahmatullah, You-Lin Chuang, RKL, and Sajid Qamar, "3D atom microscopy in the presence of Doppler shift," Laser Phys. Lett. 15, 035202 (2018) [download];

    [122] Minyi Huang, RKL, and Junde Wu, "Manifestation of Superposition and Coherence in PT-symmetry through the $\eta$-inner Product," J. Phys. A: Math. Theor. 51, 414004 (2018) [download].





    [121] Jeng Yi Lee and RKL, "Phase diagram for investigating the scattering properties of passive scatterers," reported in SPIE Newsroom (May 2017) [download].

    [120] Jeng Yi Lee, Andrey E. Miroshnichenko, and RKL, "Reexamination of Kerker’s conditions by means of the phase diagram," Phys. Rev. A 96, 043846 (2017) [download]. [citations > 10]

    [119] You-Lin Chuang, RKL, and Ite A. Yu, "Optical-density-enhanced squeezed-light generation without optical cavities," Phys. Rev. A 96, 053818 (2017) [download].

    [118] Xing-You Chen, You-Lin Chuang, Chun-Yan Lin, Chien-Ming Wu, Yongyao Li, Boris A. Malomed, and RKL, "Magic tilt angle for stabilizing two-dimensional solitons by dipole-dipole interactions," Phys. Rev. A 96, 043631 (2017) [download].

    [117] Kou-Bin Hong, Chun-Yan Lin, Tsu-Chi Chang, Wei-Hsuan Liang, Ying-Yu Lai, Chien-Ming Wu, You-Lin Chuang, Tien-Chang Lu, Claudio Conti, and RKL, "Lasing on nonlinear localized waves in curved geometry," Optics Express 25, 29068 (2017) [download].

    [116] Chung-Yun Hsieh and RKL, "Work extraction and fully entangled fraction," Phys. Rev. A 96, 012107 (2017) [download]; Phys. Rev. A 97, 059904(E) (2018) [Erratum].

    [115] Jeng Yi Lee, Andrey E. Miroshnichenko, and RKL, "Designing quantum resonant scatterers at subwavelength scale," Phys. Lett. A 381, 2860 (2017) [download].

    [114] Muhammad Tariq, Ziauddin, Tahira Bano, Iftikhar Ahmad and RKL, " Cavity electromagnetically induced transparency via spontaneously generated coherence," J. Mod. Opt. 64, 1777 (2017) [download].

    [113] Parvendra Kumar and RKL, "Sensitivity of sub-Planck structures of mesoscopically superposed coherent states to the thermal reservoirs induced decoherence," Opt. Comm. 394, 23 (2017) [download].


    [112] Chung-Yun Hsieh, Yeong-Cherng Liang, and RKL, "Quantum steerability: Characterization, quantification, superactivation, and unbounded amplification," Phys. Rev. A 94, 062120 (2016) [download]. [citations > 20]

    [111] Zhouhu Zhu, Wen-Xing Yang, Xiao-Tao Xia, Shasha Liu, Shaopeng Liu, and RKL, "Three-dimensional atom localization from spatial interference in a double two-level atomic system," Phys. Rev. A 94, 013826 (2016) [download]. [citations > 30]

    [110] Wen-Xing Yang, Xiao-Tao Xie, Ai-Xi Chen, Ziwen Huagn, and RKL, "Coherent control of high-order-harmonic generation via tunable plasmonic bichromatic near fields in a metal nanoparticle,", Phys. Rev. A 93, 053806 (2016) [download].

    [109] Ludmila Praxmeyer, Chih-Cheng Chen, Popo Yang, Shang-Da Yang, and RKL, "Direct measurement of time-frequency analogs of sub-Planck structures," Phys. Rev. A 93, 053835 (2016) [download].

    [108] Ludmila Praxmeyer, Popo Yang, and RKL, "Phase-space representation of a non-Hermitian system with PT-symmetry," Phys. Rev. A 93, 042122 (2016) [download].

    [107] Shaopeng Liu, Wen-Xing Yang, Zhoughu Zhu, Shasha Liu, and RKL, "Effective hyper-Raman scattering via inhibiting electromagnetically induced transparency in monolayer graphene under an external magnetic field," Opt. Lett. 41, 2891 (2016) [download].

    [106] Ming Shen, Wei Li, and RKL, "Control on the anomalous interactions of Airy beams in nematic liquid crystals," Optics Express 24, 8501 (2016) [download]. [citations > 20]

    [105] Jeng Yi Lee and RKL, "Phase diagram for passive electromagnetic scatterers," Optics Express 24, 6480 (2016) [download].

    [104] Shaopeng Liu, Wen-Xing Yang, Zhonghu Zhu, and RKL, "Effective terahertz signal detection via electromagnetically induced transparency in graphene," J. Opt. Soc. Am. B 33, 279 (2016) [download]. [citations > 10]

    [103] Ziauddin, You-Lin Chuang, RKL, and Sajid Qamar, "Coherent control of the group velocity in a dielectric slab doped with duplicated two-level atoms," Laser Phys. 26, 015205 (2016) [download].

    [102] Zhouhu Zhu, Wen-Xing Yang, Ai-Xi Chen, Shasha Liu, Shaopeng Liu, and RKL, "Dressed-state analysis of efficient three-dimensional atom localization in a ladder-type three-level atomic system," Laser Phys. 26, 075203 (2016) [download].

    [101] Ziauddin, You-Lin Chuang, and RKL, "PT-symmetry in Rydberg atoms," EuroPhys. Lett. 115, 14005 (2016) [download].

    [100] Ziauddin, You-Lin Chuang, Sajid Qamar, and RKL, "Goos-Hanchen shift of partially coherent light fields in epsilon-near-zero metamaterials," Sci. Rep. 6, 26504 (2016) [download]. [citations > 10]

    [99] Ziauddin, RKL, and Sajid Qamar, "Control of Goos-Hanchen shift via input probe field intensity," Opt. Comm. 379, 68 (2016) [download].

    [98] Ziauddin, RKL, and Sajid Qamar, "Goos-Hanchen shifts of partially coherent light beams from a cavity with a four-level Raman gain medium," Opt. Comm. 374, 45 (2016) [download].

    [97] E. S. Sedova, M. V. Charukhchyanb, S. M. Arakelyan, Alexander P. Alodzhants, RKL, and A. V. Kavokin "Hyperbolic metamaterials based on Bragg polariton structures," J. Exp. Theo. Phys. (JETP) Lett. 104, 62 (2016) [download].


    [96] Yi-Chan Lee, Jibing Liu, You-Lin Chuang, Min-Hsiu Hsieh, and RKL, "Passive PT-symmetric couplers without complex optical potentials," Phys. Rev. A 92, 053815 (2015) [download].

    [95] Ziauddin, You-Lin Chuang, and RKL, "Giant Goos-Hanchen shift using PT-symmetry," Phys. Rev. A 92, 013815 (2015) [download]. [citations > 20]

    [94] You-Lin Chuang, Ite A. Yu, and RKL, "Quantum theory for pulse propagation in electromagnetically-induced-transparency media beyond the adiabatic approximation," Phys. Rev. A 91, 063818 (2015) [download].


    [93] Raul A. Robles Robles, S. A. Chilingaryan, Blas M. Rodriguez-Lara, and RKL, "Ground state in the finite Dicke model for interacting qubits," Phys. Rev. A 91, 033819 (2015); Images also selected as the Kaleidoscope in Phys. Rev. A [download].


    [92] Ming Shen, Yonan Su, Ray-Ching Hong, YuanYao Lin, Chien-Chung Jeng, Min-Feng Shih, and RKL, "Observation of phase boundaries in spontaneous optical pattern formation," Phys. Rev. A 91, 023810 (2015) [download].

    [91] Ziauddin, You-Lin Chuang, and RKL, "Negative and positive Goos-Hanchen shifts of partially coherent light fields," Phys. Rev. A 91, 013803 (2015) [download]. [citations > 20]

    [90] Wen-Xing Yang, Shaopeng Liu, Zhonghu Zhu, Ziaduddin, and RKL, "Tunneling-induced giant Goos-Hanchen shift in quantum wells," Opt. Lett. 40, 3133 (2015) [download]. [citations > 30]

    [89] Wen-Xing Yang, Ai-Xi Chen, Ziwen Huang, and RKL, "Ultrafast optical switching in quantum dot-metallic nanoparticle hybrid systems," Optics Express 23, 13032 (2015) [download]. [citations > 30]

    [88] Chien-Chung Jeng, Yonan Su, Ray-Ching Hong, and RKL, "Control modulation instability in photorefractive crystals by the intensity ratio of background to signal fields," Optics Express 23, 10266 (2015) [download].

    [87] You-Lin Chuang, Ite A. Yu, and RKL, "Nonseparated states from squeezed dark-state polaritons in electromagnetically induced transparency media," J. Opt. Soc. Am. B 32, 1384 (2015) [download].

    [86] Zhonghu Zhu, Wen-Xing Yang, Ai-Xi Chen, Shaopeng Liu, and RKL, "Two-dimensional atom localization via phase-sensitive absorption-gain spectra in five-level hyper inverted-Y atomic systems," J. Opt. Soc. Am. B 32, 1070 (2015) [download]. [citations > 10]

    [85] Shaopeng Liu, Wen-Xing Yang, Zhonghu Zhu, and RKL, "Giant enhanced four-wave mixing efficiency via two-photon resonance in asymmetric quantum wells," Laser Phys. Lett. 12, 095202 (2015) [download].

    [84] Jibing Liu, Xiao-Tao Xie, Chuan-Jia Shan, Tang-Kun Liu, RKL, and Ying Wu, "Optical bistability in nonlinear periodical structures with PT-symmetric potential," Laser Physics 25, 015102 (2015) [download]. [citations > 10]

    [83] Jibing Liu, Tangkun Liu, Hong Li, Xiao-Tao Xie, D. N. Wang, and RKL, "(2+1)-D spatial ring solitons in a semiconductor quantum well system," EuroPhys. Lett. 112, 56002 (2015) [download].

    [82] Jeng-Yi Lee, Min-Chiao Tsai, Po-Chin Chen, Tin-Tin Chen, Kuei-Lin Chan, Chi-Young Lee, and RKL, "Thickness effect on light absorption and scattering for nanoparticles in shape of hollow-spheres," J. Phys. Chem: C 119, 25754 (2015) [download]. [citations > 20]


     
    [81] Yi-Chan Lee, Min-Hsiu Hsieh, Steven T. Flemmia, and RKL, "Local PT symmetry violates the no-signaling principle," Phys. Rev. Lett. 112, 130404 (2014) [download]; Editors' Suggestion; Featured in Physics: Reflecting on an Alternative Quantum Theory.  [link] [citations > 110]




    [80] Jeng Yi Lee and RKL, "Hiding the interior region of core-shell nano-particles with quantum invisible cloaks," Phys. Rev. B 89, 155425 (2014) [download]; reported in Physics Today News Picks: Invisibility cloaks theorized to work for quantum effects.  [link-1]; MIT Technology Review / ExtremeTech: Phase diagram for investigating the scattering properties of passive scatterers.  [link-2] [link-3] [citations > 10]

    [79] E. S. Sedov, A. P. Alodjants, S. M. Arakelian, You-Lin Chuang, YuanYao Lin, Wen-Xing Yang, and RKL, "Tunneling-assisted optical information storage with lattice polariton solitons in cavity-QED arrays," Phys. Rev. A 89, 033828 (2014) [download]. [citations > 10]

    [78] Ming Shen, Hongwei Zhao, Bailing Li, Jielong Shi, Qi Wang, and RKL, "Stabilization of vortex solitons by combining competing cubic-quintic nonlinearities with a finite degree of nonlocality," Phys. Rev. A 89, 025804 (2014) [download]. [citations > 30]

    [77] Yonan Su, Chun-Yan Lin, Ray-Ching Hong, Wen-Xing Yang, Chien-Chung Jeng, Tien-Chang Lu, and RKL, "Lasing on surface states in vertical-cavity surface-emission lasers," Opt. Lett. 39, 5582 (2014) [download].

    [76] Shaopeng Liu, Wen-Xing Yang, You-Lin Chuang, Ai-Xi Chen, Ang Liu, Yan Huang, and RKL, "Enhanced four-wave mixing efficiency in four-subband semiconductor quantum wells via Fano-type interference," Optics Express 22, 29179 (2014) [download]. [citations > 10]

    [75] Min-Chiao Tsai, Jeng-Yi Lee, Ya-Chen Chang, Min-Han Yang, Tin-Tin Chen, I-Chun Chang, Pei-Chi Lee, Hsin-Tien Chiu, RKL, and Chi-Young Lee, "Scattering resonance enhanced dye absorption of dye sensitized solar cells at optimized hollow structure size," J. Power Sources 268, 1 (2014) [download]. [citations > 10]

    [74] Min-Chiao Tsai, Jeng-Yi Lee, Po-Chin Chen, Yuan-Wei Chang, Ya-Chen Chang, Min-Han Yang, Hsin-Tien Chiu, I-Nan Lin, RKL, and Chi-Young Lee, "Effects of size and shell thickness of TiO2 hierarchical hollow spheres on photocatalytic behavior: An experimental and theoretical study," Applied Catalysis B: Environmental 147, 499 (2014) [download]. [citations > 40]

    [73] Wen-Xing Yang, Ai-Xi Chen, Ting-Ting Zha, Yanfeng Bai, adn RKL, "Interference-induced enhancement of field entanglement in a microwave-driven V-type single-atom laser," Central Euro. J. Phys. 12, 737 (2014) [download].

    [72] Zhonghu Zhou, Ax-Xi Chen, Wen-Xing Yang, and RKL, "Phase knob for switching steady-state behaviors from bistability to multistability via spontaneously generated coherence," J. Opt. Soc. Am. B 31, 2061 (2014) [download]. [citations > 20]

    [71] Zhonghu Zhou, Ax-Xi Chen, Yanfeng Bai, Wen-Xing Yang, and RKL, "Controllable optical steady behavior from nonradiative coherence in GaAs quantum well driven by a single elliptically polarized field," Modern Phys. Lett. B 28, 1450117 (2014) [download].

    [70] Wen-Xing Yang, Jia-Wei Lu, Zhi-Kang Zhou, Long Yang, and RKL, "Phase control of light propagation via Fano interference in asymmetric double quantum wells," J. Appl. Phys. 115, 203104 (2014) [download].

    [69] Wen-Xing Yang, Ai-Xi Chen, Yanfeng Bai, and RKL, "Ultrafast single-electron transfer in coupled quantum dots driven by a few-cycle chirped pulse," J. Appl. Phys. 115, 143105 (2014) [download]. [citations > 20]

    [68] Wen-Xing Yang, Ai-Xi Chen, Hao Guo, Yanfeng Bai, and RKL, "Carrier-envelope phase control electron transport in an asymmetric double quantum dot irradiated by a few-cycle pulse," Opt. Comm. 328, 96 (2014) [download].

    [67] Wen-Xing Yang, Wen-Hai Ma, Long Yang, Guo-Rui Zhang, and RKL, "Phase control of group velocity via Fano-type interference in a triple semiconductor quantum well," Opt. Comm. 324, 221(2014) [download]. [citations > 10]





    [66] Chien-Ming Wu, Tze-Wei Liu, Ming-Hsuan Wu, RKL, and Wang-Yau Cheng, "Absolute frequency of cesium 6S–8S 822 nm two-photon transition by a high-resolution scheme," Opt. Lett. 38, 3186 (2013) [download]; selected for Spotlight on Optics. [citations > 10]

    [65] Q. Kong, Ming Shen, Z. Chen, Q. Wang, RKL, and W. Krolikowski, "Dark solitons in nonlocal media with competing nonlinearities," Phys. Rev. A 87, 063832 (2013) [download]. [citations > 20]

    [64] Kuan-Hsien Kuo, YuanYao Lin, and RKL, "Thresholdless crescent waves in an elliptical ring," Opt. Lett. 38, 1077 (2013) [download].

    [63] L. Chen, Q. Wang, Ming Shen, H. Zhao, YuanYao Lin, C.-C. Jeng, RKL, and W. Krolikowski, "Nonlocal dark solitons under competing cubic-quintic nonlinearities," Opt. Lett. 38, 13 (2013) [download]. [citations > 30]

    [62] Chandroth P. Jisha, Alessandro Alberucci, RKL, and Gaetano Assanto, "Deflection and trapping of spatial solitons in linear photonic potentials," Optics Express 21, 18646 (2013) [download]. [citations > 20]

    [61] Alessandro Alberucci, Chandroth P. Jisha, RKL, and Gaetano Assanto, "Soliton self-routing in a finite photonic potential," Opt. Lett. 38, 2071(2013) [download].





    [60] Blas M. Rodríguez-Lara and RKL, "Classical dynamics of a two-species Bose-Einstein condensates in the presence of nonlinear master processes," Book chapter in "Spontaneous Symmetry Breaking, Self-trapping, and Josephson Oscillations," edited by Boris A. Malomed for the series in Progress in Optical Science and Photonics (Springer-Verlag Berlin Heidelburg, 2012) [Link].


    [59] I-Hong Chen, YuanYao Lin, Y.-C. Lai, E. S. Sedov, A. P. Alodjants, S. M. Arakelian, and RKL, "Solitons in cavity-QED arrays containing interacting qubits," Phys. Rev. A 86, 023829 (2012) [download]. [citations > 10]

    [58] Ming Shen, J.-J. Zheng, Q. Kong, YuanYao Lin, C.-C. Jeng, RKL, and W. Krolikowski, "Stabilization of counter-rotating vortex pairs in nonlocal media," Phys. Rev. A 86, 013827 (2012) [download]. [citations > 10]

    [57] Chandroth P. Jisha, Kuei-Chu Hsu, YuanYao Lin, Ja-Hon Lin, Chien-Chung Jeng, and RKL, "Tunable pattern transitions in a liquid-crystal-monomer mixture using two-photon polymerization," Opt. Lett. 37, 4931 (2012) [download].

    [56] Ching-Hao Wang, Tzay-Ming Hong, RKL, and Daw-Wei Wang, "Particle-wave duality in quantum tunneling of a bright soliton," Optics Express 20, 22675 (2012) [download]. [citations > 20]

    [55] Zhen Wang, Ai-Xi Chen, Yanfeng Bai, Wen-Xing Yang, and RKL, "Coherent control of optical bistability in an open $\Lambda$-type three-level atomic system," J. Opt. Soc. Am. B 29, 2891 (2012) [download]. [citations > 90]

    [54] Ming Shen, YuanYao Lin, Chien-Chung Jeng, and RKL, "Vortex pairs in nonlocal nonlinear meida," J. Opt. 14, 065204 (2012) [download]. [citations > 20]


    [53] Chandroth P. Jisha, YuanYao Lin, Tsin-Dong Lee, and RKL "Crescent Waves in Optical Cavities," Phys. Rev. Lett. 107, 183902 (2011) [download]. [citations > 10]

    [52] Wen-Xing Yang, Ai-Xi Chen, RKL, and Ying Wu, "Matched slow optical soliton pairs via biexciton coherence in quantum dots," Phys. Rev. A 84, 013835 (2011) [download]. [citations > 120]

    [51] E.S. Sedov, A.P. Alodjants, S.M. Arakelian, YuanYao Lin, and RKL, "Nonlinear properties and stabilities of polariton crystals beyond the low excitation density limit," Phys. Rev. A 84, 013813 (2011) [download]. [citations > 20]

    [50] Kuan-Hsien Kuo, YuanYao Lin, RKL, and Boris A. Malomed,"Gap solitons under competing local and nonlocal nonlinearities," Phys. Rev. A 83, 053838 (2011) [download]. [citations > 10]

    [49] YuanYao Lin, I-Hong Chen, and RKL, "Few-cycle Self-Induced-Transparency Solitons," Phys. Rev. A 83, 043828 (2011) [download].

    [48] Ming Shen, Qian Kong, Chien-Chung Jeng, Li-Juan Ge, RKL, and Wieslaw Krolikowski, "Instability suppression of vector-necklace-ring solitons in nonlocal media," Phys. Rev. A 83, 023825 (2011) [download].

    [47] Blas M. Rodriguez-Lara and RKL, "Classical dynamics of a two-species condensate driven by a quantum field," Phys. Rev. E 84, 016225 (2011) [download].

    [46] Chandroth P. Jisha, Alessandro Alberucci, RKL, and Gaetano Assanto, "Optical Solitons and Wave-Particle Duality," Opt. Lett. 36, 1848 (2011) [download].

    [45] Chandroth P. Jisha, Kuei-Chu Hsu, YuanYao Lin, Ja-Hon Lin, Kai-Ping Chuang, Chao-Yi Tai, and RKL, "Phase separation and pattern instability of laser-induced polymerization in liquid-crystal-monomer mixtures," Optical Mateirals Express 1, 1494 (2011); article in Feature issue on Liquid Crystal Materials for Photonic Applications [download].


    [44] YuanYao Lin, Chandroth P. Jisha, Ching-Jen Jeng, RKL, and Boris A. Malomed, "Gap solitons in optical lattices embedded into nonlocal media," Phys. Rev. A 81, 063803 (2010) [download].


    [43] Shiang Fang, RKL, Daw-Wei Wang, "Quantum fluctuations and condensate fraction during time-of-flight expansion," Phys. Rev. A 82, 031601(R) (2010). [download]


    [42] Wen-Xing Yang, Ai-Xi Chen, Liu-Gang Si, Kaijun Jiang, Xiaoxue Yang, and RKL, "Three-coupled ultraslow temporal solitons in a five-level tripod atomic system," Phys. Rev. A 81, 023814 (2010) [download]. [citations > 70]

    [41] Wen-Xing Yang, YuanYao Lin, Tsin-Dong Lee, RKL, and Yuri S. Kivshar, "Nonlinear localized modes in bandgap microcavities," Opt. Lett. 35, 3207 (2010) [download].

    [40] Soi-Chan Lei, Tai-Kai Ng, and RKL, "Photonic analogue of Josephson effect in a dual-species optical-lattice cavity," Optics Express 18, 14586 (2010) [download].

    [39] Blas M. Rodríguez-Lara and RKL, "Quantum phase transition of nonlinear light in the finite size Dicke Hamiltonian," J. Opt. Soc. Am. B 27, 2443 (2010); also selected in Virtual Journal of Quantum Information 10, Issue 12 (2010); and selected in Virtual Journal of Atomic Quantum Fluids 2, Issue 12 (2010) [download]. [citations > 10]


    [38] Yinchieh Lai and RKL, "Entangled Quantum Nonlinear Schrodinger Solitons," Phys. Rev. Lett. 103, 013902 (2009); also selected in Virtual Journal of Nanoscale Science & Technology 20, Issue 2 (2009); and selected in Virtual Journal of Quantum Information 9, Issue 7 (2009) [download]. [citations > 10]

    [37] Chien-Chung Jeng, YuanYao Lin, Ray-Ching Hong, and RKL, "Optical Pattern Transitions from Modulation to Transverse Instabilities in Photorefractive Crystals," Phys. Rev. Lett. 102, 153905 (2009) [download]. [citations > 10]

    [36] RKL and Yinchieh Lai, "Quantum squeezing and correlation of self-induced transparency solitons," Phys. Rev. A 80, 033839 (2009) [download].

    [35] YuanYao Lin, RKL, and Boris A. Malomed, "Bragg solitons in nonlocal nonlinear media," Phys. Rev. A 80, 013838 (2009) [download]. [citations > 10]

    [34] Wen-Xing Yang, Jing-Min Hou, YuanYao Lin, and RKL, "Detuning management of optical solitons in coupled quantum wells," Phys. Rev. A 79, 033825 (2009) [download]. [citations > 99]

    [33] YuanYao Lin, RKL, and Yuri S. Kivshar, "Transverse instability of transverse-magnetic solitons and nonlinear surface plasmons," Opt. Lett. 34, 2982 (2009) [download]. [citations > 20]

    [32] You-Lin Chuang and RKL, "Conditions to preserve quantum entanglement of quadrature fluctuation fields in electromagnetically induced transparency media," Opt. Lett. 34, 1537 (2009); also selected in Virtual Journal of Quantum Information 9, Issue 6 (2009) [download]

    [31] Wen-Xing Yang, Xiaoxue Yang, and RKL, "Carrier-envelope-phase dependent coherence in double quantum quantum wells," Optics Express 17, 15402 (2009)[download]. [citations > 20]

    [30] YuanYao Lin, Chih-Yao Chen, Wei Chien, Jin-Shan Pan, Tsin-Dong Lee, and RKL, "Enhanced directional lasing by the interference between stable and unstable periodic orbits," Appl. Phys. Lett. 94, 221112 (2009); Images also appear in Optics & Photonics News November issue (Winner in the 2008 After Image Photon Contest) [download].

    [29] Ching-Jen Cheng, YuanYao Lin, Chih-Yao Chen, Tsin-Dong Lee, and RKL, "Lasing on higher-azimuthal-order modes in vertical cavity surface emitting lasers at room temperature," Appl. Phys. B 97, 619 (2009) [download].

    [28] Wen-Xing Yang, Ai-Xi Chen, Ting-Ting Zha, and RKL, "Probe absorptions in an asymmetric double quantum well," J. Phys. B: At. Mol. Opt. Phys. 42, 225501 (2009) [download]. [citations > 10]

    [27] Wen-Xing Yang, Ting-Ting Zha, and RKL, "Giant Kerr nonlinearities and slow optical solitons in coupled double quantum-wells, " Phys. Lett. A 374, 355 (2009) [download]. [citations > 40]

    [26] Wen-Xing Yang, Jin Xu, and RKL, "Transient and steady-state absorptions of a weak probe field in a coupled double quantum-well structure," Mod. Phys. Lett. B 23, 2215 (2009) [download].

    [25] Wen-Xing Yang, Jing-Min Hou, and RKL, "Highly efficient four-wave-mixing via intersubband transitions in InGaAs/AlAs coupled double quantum well structures," J. Modern Optics 56, 716 (special issue, 2009); special issue on Quantum control of Matter and Light [download] [citations > 20].


    [24] Tsin-Dong Lee, Chih-Yao Chen, YuanYao Lin, Ming-Chiu Chou, Te-ho Wu, and RKL, "Surface-Structure-Assisted Chaotic Mode Lasing in Vertical Cavity Surface Emission Lasers," Phys. Rev. Lett. 101, 084101 (2008); Images also appear in Optics & Photonics News November issue (Winner in the 2008 After Image Photon Contest) [download]. [citations > 20]


    [23] Soi-Chan Lei and RKL, "Quantum Phase Transitions of Light for Two-level Atoms," Optics and Photonics News Dec., 44 Optics in 2008: Quantum Phase Transitions of Light for Two-level Atoms [download].

    [22] YuanYao Lin, RKL, Yee-Mou Kao, and Tsin-Fu Jiang, "Band structures of a dipolar Bose-Einstein condensate in one-dimensional lattices," Phys. Rev. A 78, 023629 (2008) [download]. [citations > 20]

    [21] Wen-Xing Yang, Jing-Min Hou, and RKL, "Ultraslow bright and dark solitons in semiconductor quantum wells," Phys. Rev. A 77, 033838 (2008) [download]. [citations > 180]

    [20] Soi-Chan Lei and RKL, "Quantum Phase Transitions of Light in the Dicke-Bose-Hubbard model," Phys. Rev. A 77, 033827 (2008) [download]. [citations > 30]

    [19] YuanYao Lin and RKL, "Symmetry-breaking instabilities of generalized elliptical solitons," Opt. Lett. 33, 1377 (2008) [download].

    [18] Wen-Xing Yang and RKL, "Controllable entanglement and polarization phase gate in coupled double quantum-well structures," Optics Express 16, 17161 (2008); also selected in Virtual Journal of Quantum Information 8, Issue 12 (2008) and selected in Virtual Journal of Nanoscale Science & Technology 18, Issue 23 (2008) [download]. [citations > 30]

    [17] Wen-Xing Yang and RKL, "Slow optical solitons via intersubband transitions in a semiconductor quantum well," EuroPhys. Lett. 83, 14002 (2008) [download]. [citations > 40]

    [16] YuanYao Lin, RKL, and Yuri S. Kivshar, "Suppression of soliton transverse instabilities in nonlocal nonlinear media," J. Opt. Soc. Am. B 25, 576 (2008) [download]. [citations > 20]

    [15] YuanYao Lin, I-Hong Chen, and RKL, "Breather-like Collision of Gap Solitons in Bragg Gap Regions within Nonlocal Nonlinear Photonic Crystals," J. Opt. A: Pure and Applied Optics 10, 044017 (special issue, 2008); selected papers from Optical MEMS and Nanophotonics 2007 (12–16 Aug. 2007, Hualien, Taiwan) [download]. [citations > 10]

    [14] Chia-Sheng Chou, RKL, Peng-Chun Peng, Hao-chung Kuo, Gray Lin, Hung-Ping Yang and Jim Y. Chi, "A Simple Model for Cavity Enhanced Slow Lights in Vertical Cavity Surface Emission Lasers," J. Opt. A: Pure and Applied Optics 10, 044016 (special issue, 2008); selected papers from Optical MEMS and Nanophotonics 2007 (12–16 Aug. 2007, Hualien, Taiwan) [download].

    [13] Cheng-Ling Lee, RKL, and Yee-Mou Kao, "Lagrange-multiplier-constrained optimization for designing narrowband dispersionless fiber Bragg gratings," Optical Engineering 47, 015005 (2008) [download].

    [12] Cheng-Ling Lee, RKL, and Yee-Mou Kao, "Synthesis of long-period fiber gratings with a Lagrange multiplier optimization method," Optics Comm. 281, 61 (2008) [download].


    [11] YuanYao Lin and RKL, "Dark-bright soliton pairs in nonlocal nonlinear media," Optics Express 15, 8781 (2007) [download]. [citations > 60]


    [10] Cheng-Ling Lee, RKL, and Yee-Mou Kao, "Design of multichannel DWDM fiber Bragg grating filters by Lagrange multiplier constrained optimization," Optics Express 14, 11002 (2006) [download]. [citations > 40]


    [9] RKL, Elena A. Ostrovskaya, Yuri S. Kivshar, and Yinchieh Lai, "Quantum-noise properties of matter-wave gap solitons," Phys. Rev. A 72, 033607 (2005) [download]. [citations > 10]

    [8] RKL, Yinchieh Lai, and Yuri S. Kivshar, "Quantum correlations in soliton collisions," Phys. Rev. A 71, 035801 (2005); also selected in Virtual Journal of Quantum Information 5, Issue 4 (2005) [download]. [citations > 10]

    [7] RKL, Yinchieh Lai, and Boris Malomed, "Generation of photon-number entangled soliton pairs through interactions," Phys. Rev. A 71, 013816 (2005); also selected in Virtual Journal of Quantum Information 5, Issue 2 (2005) [download]. [citations > 10]

    [6] RKL, Yinchieh Lai, and Boris A. Malomed, "Photon-number fluctuation and correlation of bound soliton pairs in mode-locked fiber lasers," Opt. Lett. 34, 3084 (2005) [download].


    [5] RKL, Yinchieh Lai, and Boris Malomed, "Quantum correlations in bound-soliton pairs and trains in fiber lasers," Phys. Rev. A 70, 063817 (2004); also selected in Virtual Journal of Quantum Information 5, Issue 1 (2005) [download]. [citations > 10]

    [4] RKL, and Yinchieh Lai, "Fluorescence squeezing spectra near a photonic bandgap," J. Opt. B: Quantum and Semiclassical Optics 6, S715 (special issue 2004); in memoriam of Hermann Anton Haus, 1925-2003 [download]. [citations > 10]

    [3] RKL and Yinchieh Lai, "Quantum theory of fiber Bragg grating solitons," J. Opt. B: Quantum and Semiclassical Optics 6, S638 (special issue 2004) in memoriam of Hermann Anton Haus, 1925-2003 [download].

    [2] RKL and Yinchieh Lai, and Boris A. Malomed, "Quantum Fluctuations around Bistable Solitons in the cubic-quintic nonlinear Schrodinger equation," J. Opt. B: Quantum and Semiclassical Optics 6, 367 (2004) [download].


    [1] RKL and Yinchieh Lai, "Amplitude-squeezed fiber-Bragg-grating solitons," Phys. Rev. A 69, 021801(R) (2004); also selected in Virtual Journal of Nanoscale Science & Technology 9, Issue 8 (2004) [download]. [citations > 10]

    Collaborations:

    • Ite A. Yu (余怡德); Department of Physics, National Tsing Hua University, Hsinchu
      [4] You-Lin Chuang, RKL, and Ite A. Yu, "Generation of quantum entanglement based on electromagnetically induced transparency media," submitted for publication (April 2020); [arXiv: 1906.12025].

      [3] You-Lin Chuang, RKL, and Ite A. Yu, "Generation of quantum entanglement based on electromagnetically induced transparency media," submitted for publication (April 2020); [arXiv: 1906.12025].

      [2] You-Lin Chuang, RKL, and Ite A. Yu, "Optical-density-enhanced squeezed-light generation without optical cavities," Phys. Rev. A 96, 053818 (2017) [download].

      [1] You-Lin Chuang, Ite A. Yu, and RKL, "Quantum theory for pulse propagation in electromagnetically-induced-transparency media beyond the adiabatic approximation," Phys. Rev. A 91, 063818 (2015) [download].


    • Daw-Wei Wang (王道維); Department of Physics, National Tsing Hua University, Hsinchu
      [2] Ching-Hao Wang, Tzay-Ming Hong, RKL, and Daw-Wei Wang, "Particle-wave duality in quantum tunneling of a bright soliton," Optics Express 20, 22675 (2012) [download].


      [1] Shiang Fang, RKL, Daw-Wei Wang, "Quantum fluctuations and condensate fraction during time-of-flight expansion," Phys. Rev. A 82, 031601(R) (2010). [download]


    • Chih-Sung Chuu (褚志崧); Department of Physics, National Tsing Hua University, Hsinchu

    • Mark Ming-Chang Lee (李明昌); Institute of Photonics Technologies, National Tsing Hua University, Hsinchu


    • Shang-Da Yang (楊尚達); Institute of Photonics Technologies, National Tsing Hua University, Hsinchu
      [1] Ludmila Praxmeyer, Chih-Cheng Chen, Popo Yang, Shang-Da Yang, and RKL, "Direct measurement of time-frequency analogs of sub-Planck structures," Phys. Rev. A 93, 053835 (2016) [download].


    • Chi-Yang Lee (李紫原); Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu
      [3] Jeng-Yi Lee, Min-Chiao Tsai, Po-Chin Chen, Tin-Tin Chen, Kuei-Lin Chan, Chi-Young Lee , and RKL, "Thickness effect on light absorption and scattering for nanoparticles in shape of hollow-spheres," J. Phys. Chem: C 119, 25754 (2015) [download].

      [2] Min-Chiao Tsai, Jeng-Yi Lee, Ya-Chen Chang, Min-Han Yang, Tin-Tin Chen, I-Chun Chang, Pei-Chi Lee, Hsin-Tien Chiu, RKL, and Chi-Young Lee, "Scattering resonance enhanced dye absorption of dye sensitized solar cells at optimized hollow structure size," J. Power Sources 268, 1 (2014) [download].

      [1] Min-Chiao Tsai, Jeng-Yi Lee, Po-Chin Chen, Yuan-Wei Chang, Ya-Chen Chang, Min-Han Yang, Hsin-Tien Chiu, I-Nan Lin, RKL, and Chi-Young Lee, "Effects of size and shell thickness of TiO2 hierarchical hollow spheres on photocatalytic behavior: An experimental and theoretical study," Applied Catalysis B: Environmental 147, 499 (2014) [download].

    • Yinchieh Lai (賴暎杰); Department of Photonics, National Chiao-Tung University, Hsinchu
      [10] Yinchieh Lai and RKL, "Entangled Quantum Nonlinear Schrodinger Solitons," Phys. Rev. Lett. 103, 013902 (2009); also selected in Virtual Journal of Nanoscale Science & Technology 20, Issue 2 (2009); and selected in Virtual Journal of Quantum Information 9, Issue 7 (2009) [download].

      [9] RKL and Yinchieh Lai, "Quantum squeezing and correlation of self-induced transparency solitons," Phys. Rev. A 80, 033839 (2009) [download].

      [8] RKL, Yinchieh Lai, and Boris A. Malomed, "Photon-number fluctuation and correlation of bound soliton pairs in mode-locked fiber lasers," Opt. Lett. 34, 3084 (2005) [download].

      [7] RKL, Elena A. Ostrovskaya, Yuri S. Kivshar, and Yinchieh Lai, "Quantum-noise properties of matter-wave gap solitons," Phys. Rev. A 72, 033607 (2005) [download].

      [6] RKL, Yinchieh Lai, and Yuri S. Kivshar, "Quantum correlations in soliton collisions," Phys. Rev. A 71, 035801 (2005); also selected in Virtual Journal of Quantum Information 5, Issue 4 (2005) [download].

      [5] RKL, Yinchieh Lai, and Boris Malomed, "Generation of photon-number entangled soliton pairs through interactions," Phys. Rev. A 71, 013816 (2005); also selected in Virtual Journal of Quantum Information 5, Issue 2 (2005) [download].

      [4] RKL, Yinchieh Lai, and Boris Malomed, "Quantum correlations in bound-soliton pairs and trains in fiber lasers," Phys. Rev. A 70, 063817 (2004); also selected in Virtual Journal of Quantum Information 5, Issue 1 (2005) [download].

      [3] RKL and Yinchieh Lai, "Quantum theory of fiber Bragg grating solitons," J. Opt. B: Quantum and Semiclassical Optics 6, S638 (special issue 2004) in memoriam of Hermann Anton Haus, 1925-2003 [download].

      [2] RKL and Yinchieh Lai, and Boris A. Malomed, "Quantum Fluctuations around Bistable Solitons in the cubic-quintic nonlinear Schrodinger equation," J. Opt. B: Quantum and Semiclassical Optics 6, 367 (2004) [download].


      [1] RKL and Yinchieh Lai, "Amplitude-squeezed fiber-Bragg-grating solitons," Phys. Rev. A 69, 021801(R) (2004); also selected in Virtual Journal of Nanoscale Science & Technology 9, Issue 8 (2004) [download].


    • Tsin-Fu Jiang (江進福); Institute of Physics, National Chiao-Tung University, Hsinchu
      [1] YuanYao Lin, RKL, Yee-Mou Kao, and Tsin-Fu Jiang, "Band structures of a dipolar Bose-Einstein condensate in one-dimensional lattices," Phys. Rev. A 78, 023629 (2008) [download].


    • Tien-chang Lu (盧廷昌); Department of Photonics, National Chiao-Tung University, Hsinchu
      [3] Yu-Chi Wang, Heng Li, Yu-Heng Hong, Kuo-Bin Hong, Fang-Chung Chen, Chia-Hung Hsu, RKL, Claudio Conti, Tsung Sheng Kao, and Tien-Chang Lu, "Flexible Organometal-Halide Perovskite Lasers for Speckle Reduction in Imaging Projection," ACS Nano 13, 5421 (2019) [download].

      [2] Kou-Bin Hong, Chun-Yan Lin, Tsu-Chi Chang, Wei-Hsuan Liang, Ying-Yu Lai, Chien-Ming Wu, You-Lin Chuang, Tien-Chang Lu, Claudio Conti, and RKL, "Lasing on nonlinear localized waves in curved geometry," Optics Express 25, 29068 (2017) [download].

      [1] Yonan Su, Chun-Yan Lin, Ray-Ching Hong, Wen-Xing Yang, Chien-Chung Jeng, Tien-Chang Lu, and RKL "Lasing on surface states in vertical-cavity surface-emission lasers," Opt. Lett. 39, 5582 (2014) [download].


    • Po-Tsung Lee (李柏璁); Department of Photonics, National Chiao-Tung University, Hsinchu

    • Ching-Yi Lai (賴青沂); Department of Electrical Engineering, National Chiao-Tung University
      [1] Li-Yi Hsu, Ching-Yi Lai, You-Chia Chang, Chien-Ming Wu, and RKL, "Carrying an arbitrarily large amount of information using a single quantum particle," Phys. Rev. A 102, 022620 (2020); [download].


    • Yen-Hung Chen (陳彥宏); Department of Photonics, National Central University, Taoyuan

    • Queena Yi-Shan Lee (李依珊); Department of Electrical Engineering, National Central University, Taoyuan

    • Ming-Feng Shih (石明豐): Department of Physics, National Taiwan University, Taipei
      [2] Ray-Ching Hong, Chun-Yan Lin, You-Lin Chuang, Chien-Ming Wu, Yonan Su, Jeng Yi Lee, Chien-Chung Jeng, Ming-Feng Shih, and RKL, "Resonance in modulation instability from non-instantaneous nonlinearities," Opt. Lett. 43, 3329 (2018) [download].

      [1] Ming Shen, Yonan Su, Ray-Ching Hong, YuanYao Lin, Chien-Chung Jeng, Min-Feng Shih, and RKL, "Observation of phase boundaries in spontaneous optical pattern formation," Phys. Rev. A 91, 023810 (2015) [download].


    • Chien-Chung Jeng (鄭建宗), Department of Physics, National Chung Hsing University, Taichung
      [10] Ray-Ching Hong, Chun-Yan Lin, You-Lin Chuang, Chien-Ming Wu, Yonan Su, Jeng Yi Lee, Chien-Chung Jeng, Ming-Feng Shih, and RKL, "Resonance in modulation instability from non-instantaneous nonlinearities," Opt. Lett. 43, 3329 (2018) [download].

      [9] Chien-Chung Jeng, Yonan Su, Ray-Ching Hong, and RKL, "Control modulation instability in photorefractive crystals by the intensity ratio of background to signal fields," Optics Express 23, 10266 (2015) [download].

      [8] Ming Shen, Yonan Su, Ray-Ching Hong, YuanYao Lin, Chien-Chung Jeng ,, Min-Feng Shih, and RKL, "Observation of phase boundaries in spontaneous optical pattern formation," Phys. Rev. A 91, 023810 (2015) [download].

      [7] Yonan Su, Chun-Yan Lin, Ray-Ching Hong, Wen-Xing Yang, Chien-Chung Jeng , Tien-Chang Lu, and RKL "Lasing on surface states in vertical-cavity surface-emission lasers," Opt. Lett. 39, 5582 (2014) [download].

      [6] L. Chen, Q. Wang, Ming Shen, H. Zhao, Y.Y. Lin, Chien-Chung Jeng , RKL, and W. Krolikowski, "Nonlocal dark solitons under competing cubic-quintic nonlinearities," Opt. Lett. 38, 13 (2013) [download].

      [5] Ming Shen, J.-J. Zheng, Q. Kong, YuanYao Lin, Chien-Chung Jeng, RKL, and W. Krolikowski, "Stabilization of counter-rotating vortex pairs in nonlocal media," Phys. Rev. A 86, 013827 (2012) [download].

      [4] Chandroth P. Jisha, Kuei-Chu Hsu, YuanYao Lin, Ja-Hon Lin, Chien-Chung Jeng, and RKL, "Tunable pattern transitions in a liquid-crystal-monomer mixture using two-photon polymerization," Opt. Lett. 37, 4931 (2012) [download].

      [3] Ming Shen, YuanYao Lin, Chien-Chung Jeng, and RKL, "Vortex pairs in nonlocal nonlinear meida," J. Opt. 14, 065204 (2012) [download].

      [2] Ming Shen, Qian Kong, Chien-Chung Jeng, Li-Juan Ge, RKL, and Wieslaw Krolikowski, "Instability suppression of vector-necklace-ring solitons in nonlocal media," Phys. Rev. A 83, 023825 (2011) [download].

      [1] Chien-Chung Jeng, YuanYao Lin, Ray-Ching Hong, and RKL, "Optical Pattern Transitions from Modulation to Transverse Instabilities in Photorefractive Crystals," Phys. Rev. Lett. 102, 153905 (2009) [download].


    • Watson Kuo (郭華丞), Department of Physics, National Chung Hsing University, Taichung
      [1] Yu-Han Chang, Raul A. Robles Robles, Vanna Chrismas Silalahi, Cen-Shawn Wu, Gang Wang, Giulia Marcucci, Laura Pilozzi, Claudio Conti, RKL, and Watson Kuo, "Direct Observation of Topological Protected Edge States in Slow-Light," submitted for publication (Apr. 2020); [arXiv: 2004.09282].


    • Jen-Hsu Chang (張仁煦), Graduate School of National Defense, National Defense University, Taoyuan
      [1] Chun-Yan Lin, Jen-Hsu Chang, Gershon Kurizki, and RKL, "Solitons supported by intensity-dependent dispersion," Opt. Lett. 45, 1471 (2020) [download].

      [2] Jen-Hsu Chang, Chun-Yan Lin, and RKL, "Nonlinear Effective Masses Schrodinger Equation with Harmonic Oscillator," submitted for publication (Aug. 2019); [arXiv: 1911.12477].


    • Shin-Tza Wu (吳欣澤), Department of Physics, National Chung Cheng University, Chiayi
      [1] Popo Yang, Ivan F. Valtierra, Andrei B. Klimov, Shin-Tza Wu, RKL, and Luis L. Sanchez-Soto, and Gerd Leuchs, "The Wigner flow on the sphere," Physica Scripta 94, 044001 (2019); for the New Focus issue: Quantum Optics and Beyond- in honour of Wolfgang Schleich [download].


    • Yeong-Cherng Liang (梁永成), Department of Physics, National Cheng Kung University, Tainan
      [1] Chung-Yun Hsieh, Yeong-Cherng Liang, and RKL, "Quantum steerability: Characterization, quantification, superactivation, and unbounded amplification," Phys. Rev. A 94, 062120 (2016) [download].


    • Li-Yi Hsu(徐立義); Department of Physics, Chung Yuan Christian University, Taoyuan
      [1] Li-Yi Hsu, Ching-Yi Lai, You-Chia Chang, Chien-Ming Wu, and RKL, "Carrying an arbitrarily large amount of information using a single quantum particle," Phys. Rev. A 102, 022620 (2020); [download].


    • Cheng-Ling Lee (李澄琳); Department of Physics, National United University, Miaoli
      [3] Cheng-Ling Lee, RKL, and Yee-Mou Kao, "Lagrange-multiplier-constrained optimization for designing narrowband dispersionless fiber Bragg gratings," Optical Engineering 47, 015005 (2008) [download].

      [2] Cheng-Ling Lee, RKL, and Yee-Mou Kao, "Synthesis of long-period fiber gratings with a Lagrange multiplier optimization method," Optics Comm. 281, 61 (2008) [download].

      [1] Cheng-Ling Lee, RKL, and Yee-Mou Kao, "Design of multichannel DWDM fiber Bragg grating filters by Lagrange multiplier constrained optimization," Optics Express 14, 11002 (2006) [download].


    • YuanYao Lin (林元堯); Department of Photonics, National Sun Yat-sen University, Kaohsiung
       More

    • Jeng Yi Lee (李政誼); Department of Photonics, National Dong Hwa University, Hualien
       More

  • KAGRA collaboration, Institute for Cosmic Ray Research (ICRR), KAGRA Observatory, The University of Tokyo, Japan

  • Matteo Leonardi; National Astronomical Observatory of Japan, Mitaka, Tokyo, Japan


    [1] Yuhang Zhao, Naoki Aritomi, Eleonora Capocasa, Matteo Leonardi, Marc Eisenmann, Yuefan Guo, Eleonora Polini, Akihiro Tomura, Koji Arai, Yoichi Aso, Yao-Chin Huang, RKL, Harald Luck, Osamu Miyakawa, Pierre Prat, Ayaka Shoda, Matteo Tacca, Ryutaro Takahashi, Henning Vahlbruch, Marco Vardaro, Chien-Ming Wu, Matteo Barsuglia, and Raffaele Flaminio, "Frequency-dependent squeezed vacuum source for broadband quantum noise reduction in advanced gravitational-wave detectors," Phys. Rev. Lett. 124, 171101 (2020) [download];   Editors' Suggestion; Featured in Physics [download].

  • Gang Wang (王鋼), School of Physical Science and Technology, Soochow University, Suzhou, China
    [4] Yu-Han Chang, Raul A. Robles Robles, Vanna Chrismas Silalahi, Cen-Shawn Wu, Gang Wang, Giulia Marcucci, Laura Pilozzi, Claudio Conti, RKL, and Watson Kuo, "Direct Observation of Topological Protected Edge States in Slow-Light," submitted for publication (Apr. 2020); [arXiv: 2004.09282].

    [3] Chun-Yan Lin, Giulia Marcucci, You-Lin Chuang, Gang Wang, Claudio Conti, and RKL, "Multidimensional topological strings by curved potentials: Simultaneous realization of mobility edge and topological protection," submitted for publication (Feb. 2020); [arXiv: 2002.03091].

    [2] Hang Yu, En Guo Guan, Gang Wang, Jian Hua Jiang, Jun Hu, Jin Hui Wu, and RKL, "Synthesizing quantum spin Hall phase for ultracold atoms in bichromatic chiral optical ladders," Optics Express 28, 21072 (2020) [download];

    [1] Hua Li Chen, Gang Wang, and RKL, "Nearly complete survival of an entangled biphoton through bound states in continuum in disordered photonic lattices," Optics Express 26, 33205 (2018) [download].


  • Junde Wu (武俊德), School of Mathematical Sciences, Zhejiang University, Hangzhou, China
    [5] Minyi Huang, RKL, and Junde Wu, "The internal nonlocality in PT-symmetry systems," submitted for publication (Sep. 2020); [arXiv: 2009.06121].

    [4] Hai Wang, RKL, and Junde Wu, "Discrete-time modeling of quantum evolutions, the energy-time uncertainty relation and general extensions in the entangled history formalism," submitted for publication (Jan. 2020).[arXiv: 1908.02935].

    [3] Hai Wang, RKL, Manish Kumar Shukla, Indranil Chakrabarty, Shaoming Fei, and Junde Wu, "Quantum Channels as Temporal Correlations in Quantum Mechanics," submitted for publication (Feb. 2020); [arXiv: 1910.05694].

    [2] Minyi Huang, RKL, Lijian Zhang, Shao-Ming Fei, and Junde Wu, "Simulating broken PT-symmetric Hamiltonian systems by weak measurement," Phys. Rev. Lett. 123, 080404 (2019) [download].

    [1] Minyi Huang, RKL, and Junde Wu, "Manifestation of Superposition and Coherence in PT-symmetry through the $\eta$-inner Product," J. Phys. A: Math. Theor. 51, 414004 (2018) [download].


  • Lijian Zhang (張利劍) , College of Engineering and Applied Sciences, Nanjing University, Nanjing, China
    [1]Minyi Huang, RKL, Lijian Zhang, Shao-Ming Fei, and Junde Wu, "Simulating broken PT-symmetric Hamiltonian systems by weak measurement," Phys. Rev. Lett. 123, 080404 (2019) [download].


  • Minyi Huang (黃閔怡), Zhejiang University of Sciences and Technology, Hangzhou, China
    [3] Minyi Huang, RKL, and Junde Wu, "The internal nonlocality in PT-symmetry systems," submitted for publication (Sep. 2020); [arXiv: 2009.06121].

    [2] Minyi Huang, RKL, Lijian Zhang, Shao-Ming Fei, and Junde Wu, "Simulating broken PT-symmetric Hamiltonian systems by weak measurement," Phys. Rev. Lett. 123, 080404 (2019) [download].

    [1] Minyi Huang, RKL, and Junde Wu, "Manifestation of Superposition and Coherence in PT-symmetry through the $\eta$-inner Product," J. Phys. A: Math. Theor. 51, 414004 (2018) [download].


  • Shaoming Fei (費少明); School of Mathematical Sciences, Capital Normal University, Beijing, China,
    [2] Hai Wang, RKL, Manish Kumar Shukla, Indranil Chakrabarty, Shaoming Fei , and Junde Wu, "Quantum Channels as Temporal Correlations in Quantum Mechanics," submitted for publication (Feb. 2020); [arXiv: 1910.05694].

    [1] Minyi Huang, RKL, Lijian Zhang, Shaoming Fei, and Junde Wu, "Simulating broken PT-symmetric Hamiltonian systems by weak measurement," Phys. Rev. Lett. 123, 080404 (2019) [download].


  • Wen-Xing Yang (楊文星), Yangtze University, Jingzhou, Hubei, China
     More

  • Ming Shen (申明), Shanghai University, Shanghai, China
     More

  • Jibing Liu (劉繼兵), Hubei Normal University, Hubei, China
     More

  • Qingyu Cai (蔡慶宇), Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, China

  • Tai-Kai Ng (吳大琪), Department of Physics, Hong Kong University of Science and Technology, Hong Kong
    [1] Soi-Chan Lei, Tai-Kai Ng, and RKL, "Photonic analogue of Josephson effect in a dual-species optical-lattice cavity," Optics Express 18, 14586 (2010) [download].


  • Zia uddin, Department of Physics, COMSATS Institute of Information Technology, Islamabad, Pakistan
     More

  • Sajid Qamar, Department of Physics, COMSATS Institute of Information Technology, Islamabad, Pakistan
    [6] Rahmatullah, Ziauddin, You-Lin Chuang, RKL, and Sajid Qamar, "Sub-microwave wavelength localization of Rydberg superatoms," J. Opt. Soc. Am. B 35, 2588 (2018) [download].

    [5] Rahmatullah, You-Lin Chuang, RKL, and Sajid Qamar, "3D atom microscopy in the presence of Doppler shift," Laser Phys. Lett. 15, 035202 (2018) [download];

    [4] Ziauddin, You-Lin Chuang, Sajid Qamar, and RKL, "Goos-Hanchen shift of partially coherent light fields in epsilon-near-zero metamaterials," Sci. Rep. 6, 26504 (2016) [download].

    [3] Ziauddin, RKL, and Sajid Qamar, "Goos-Hanchen shifts of partially coherent light beams from a cavity with a four-level Raman gain medium," Opt. Comm. 374, 45 (2016) [download].

    [2] Ziauddin, RKL, and Sajid Qamar, "Control of Goos-Hanchen shift via input probe field intensity," Opt. Comm. 379, 68 (2016) [download].

    [1] Ziauddin, You-Lin Chuang, RKL, and Sajid Qamar, "Coherent control of the group velocity in a dielectric slab doped with duplicated two-level atoms," Laser Phys. 26, 015205 (2016) [download].


  • Utpal Roy; Indian Institute of Technology Patna, India
    [1] Jayanta Bera, Suranjana Ghosh, RKL, and Utpal Roy, "Theoretical scheme for quantum sensing in trapped ultracold atoms," submitted for publication (Sep. 2020).


  • Suranjana Ghosh; Indian Institute of Science Education and Research Kolkata, India
    [1] Jayanta Bera, Suranjana Ghosh, RKL, and Utpal Roy, "Theoretical scheme for quantum sensing in trapped ultracold atoms," submitted for publication (Sep. 2020).


  • Indranil Chakrabarty; Center for Security Theory and Algorithmic Research, International Institute of Information Technology, Gachibowli, Hyderabad, India
    [1] Hai Wang, RKL, Manish Kumar Shukla, Indranil Chakrabarty, Shaoming Fei, and Junde Wu, "Quantum Channels as Temporal Correlations in Quantum Mechanics," submitted for publication (Feb. 2020); [arXiv: 1910.05694].


  • Gershon Kurizki; Department of Chemical Physics, Weizmann Institute of Science, Rehovot, Israel
    [1] Chun-Yan Lin, Jen-Hsu Chang, Gershon Kurizki, and RKL, "Solitons supported by intensity-dependent dispersion," Opt. Lett. 45, 1471 (2020) [download].


  • Aharon J. Agranat; Applied Physics Department, Hebrew University of Jerusalem, Israel
    [1] Giulia Marcucci, Davide Pierangeli, Aharon J. Agranat, RKL, Eugenio DelRe, and Claudio Conti, "Topological Control of Extreme Waves," Nature Comm. 10, 5090 (2019) [download]; Highlight by Nature Phys. 15, 1210 (2019): Tamed by Topology [download].


  • Boris A. Malomed; Department of Physical Electronics, School of Electrical Engineering, Faculty of Engineering, Tel Aviv University, Israel
    [8] Xing-You Chen, You-Lin Chuang, Chun-Yan Lin, Chien-Ming Wu, Yongyao Li, Boris A. Malomed, and RKL, "Magic tilt angle for stabilizing two-dimensional solitons by dipole-dipole interactions," Phys. Rev. A 96, 043631 (2017) [download].

    [7] Kuan-Hsien Kuo, YuanYao Lin, RKL, and Boris A. Malomed, "Gap solitons under competing local and nonlocal nonlinearities," Phys. Rev. A 83, 053838 (2011) [download].

    [6] YuanYao Lin, Chandroth P. Jisha, Ching-Jen Jeng, RKL, and Boris A. Malomed , "Gap solitons in optical lattices embedded into nonlocal media," Phys. Rev. A 81, 063803 (2010) [download].

    [5] YuanYao Lin, RKL, and Boris A. Malomed, "Bragg solitons in nonlocal nonlinear media," Phys. Rev. A 80, 013838 (2009) [download].

    [4] RKL, Yinchieh Lai, and Boris A. Malomed, "Photon-number fluctuation and correlation of bound soliton pairs in mode-locked fiber lasers," Opt. Lett. 34, 3084 (2005) [download].

    [3] RKL, Yinchieh Lai, and Boris A. Malomed, "Generation of photon-number entangled soliton pairs through interactions," Phys. Rev. A 71, 013816 (2005); also selected in Virtual Journal of Quantum Information 5, Issue 2 (2005) [download].

    [2] RKL, Yinchieh Lai, and Boris A. Malomed, "Quantum correlations in bound-soliton pairs and trains in fiber lasers," Phys. Rev. A 70, 063817 (2004); also selected in Virtual Journal of Quantum Information 5, Issue 1 (2005) [download].

    [1] RKL and Yinchieh Lai, and Boris A. Malomed, "Quantum Fluctuations around Bistable Solitons in the cubic-quintic nonlinear Schrodinger equation," J. Opt. B: Quantum and Semiclassical Optics 6, 367 (2004) [download].


  • Virgo Collaboration

  • Alexander Alodjants, National Research University for Information Technology, Mechanics and Optics (ITMO), St. Petersburg, Russia
    [8] D. V. Tsarev, Alexander P. Alodjants, T. V. Ngo, and RKL, "Mesoscopic quantum superposition states of weakly-coupled matter-wave solitons," submitted for publication (June 2020).

    [7] Alexey A. Melonikov, Leonid E. Fedichkin, RKL, and Alexander P. Alodjants , "Machine learning transfer efficiencies for noisy quantum walks," Adv. Quant. Tech. 3,1900115 (2020) [download];   Back Cover for Adv. Quantum Technol. 4/2020.  [link]

    [6] D. V. Tsarev, T. V. Ngo, RKL, and Alexander P. Alodjants, "Nonlinear quantum metrology with moving matter-wave solitons," New J. Phys. 21, 083041 (2019) [download].

    [5] D. V. Tsarev, S. M. Arakelian, You-Lin Chuang, RKL, and Alexander P. Alodjants, "Quantum metrology beyond Heisenberg limit with entangled matter wave solitons," Optics Express 26, 19583 (2018) [download].

    [4] E. S. Sedova, M. V. Charukhchyanb, S. M. Arakelyan, Alexander P. Alodzhants, RKL, and A. V. Kavokin "Hyperbolic metamaterials based on Bragg polariton structures," J. Exp. Theo. Phys. (JETP) Lett. 104, 62 (2016) [download].

    [3] E. S. Sedov, Alexander P. Alodjants, S. M. Arakelian, You-Lin Chuang, YuanYao Lin, Wen-Xing Yang, and RKL, "Tunneling-assisted optical information storage with lattice polariton solitons in cavity-QED arrays," Phys. Rev. A 89, 033828 (2014) [download].

    [2]] I-Hong Chen, YuanYao Lin, Y.-C. Lai, E. S. Sedov, Alexander P. Alodjants , S. M. Arakelian, and RKL, "Solitons in cavity-QED arrays containing interacting qubits," Phys. Rev. A 86, 023829 (2012) [download].

    [1] E.S. Sedov, Alexander P. Alodjants, S. M. Arakelian, YuanYao Lin, and RKL, "Nonlinear properties and stabilities of polariton crystals beyond the low excitation density limit," Phys. Rev. A 84, 013813 (2011) [download].


  • S. M. Arakelian, Department of Physics and Applied Mathematics, Vladimir State University named after A. G. and N. G. Stoletovs, Vladimir, Russia
    [5] D. V. Tsarev, S. M. Arakelian, You-Lin Chuang, RKL, and Alexander P. Alodjants, "Quantum metrology beyond Heisenberg limit with entangled matter wave solitons," Optics Express 26, 19583 (2018) [download].

    [4] E. S. Sedova, M. V. Charukhchyanb, S. M. Arakelyan, Alexander P. Alodzhants, RKL, and A. V. Kavokin "Hyperbolic metamaterials based on Bragg polariton structures," J. Exp. Theo. Phys. (JETP) Lett. 104, 62 (2016) [download].

    [3] E. S. Sedov, Alexander P. Alodjants, S. M. Arakelian, You-Lin Chuang, YuanYao Lin, Wen-Xing Yang, and RKL, "Tunneling-assisted optical information storage with lattice polariton solitons in cavity-QED arrays," Phys. Rev. A 89, 033828 (2014) [download].

    [2]] I-Hong Chen, YuanYao Lin, Y.-C. Lai, E. S. Sedov, Alexander P. Alodjants, S. M. Arakelian, and RKL, "Solitons in cavity-QED arrays containing interacting qubits," Phys. Rev. A 86, 023829 (2012) [download].

    [1] E.S. Sedov, Alexander P. Alodjants, S. M. Arakelian, YuanYao Lin, and RKL, "Nonlinear properties and stabilities of polariton crystals beyond the low excitation density limit," Phys. Rev. A 84, 013813 (2011) [download].


  • Alexey A. Melnikov, Department of Physics, University of Basel, Switzerland
    [1] Alexey A. Melonikov, Leonid E. Fedichkin, RKL, and Alexander Alodjants, "Machine learning transfer efficiencies for noisy quantum walks," Adv. Quant. Tech. 3,1900115 (2020) [download];   Back Cover for Adv. Quantum Technol. 4/2020.  [link]


  • Leonid E. Fedichkin, Department of Physics, University of Basel, Switzerland
    [1] Alexey A. Melonikov, Leonid E. Fedichkin, RKL, and Alexander Alodjants, "Machine learning transfer efficiencies for noisy quantum walks," Adv. Quant. Tech. 3,1900115 (2020) [download];   Back Cover for Adv. Quantum Technol. 4/2020.  [link]


  • Claudio Conti, Institute for Complex Systems, National Research Council (ISC-CNR), Rome, Italy
    [5] Yu-Han Chang, Raul A. Robles Robles, Vanna Chrismas Silalahi, Cen-Shawn Wu, Gang Wang, Giulia Marcucci, Laura Pilozzi, Claudio Conti, RKL, and Watson Kuo, "Direct Observation of Topological Protected Edge States in Slow-Light," submitted for publication (Apr. 2020); [arXiv: 2004.09282].

    [4] Chun-Yan Lin, Giulia Marcucci, You-Lin Chuang, Gang Wang, Claudio Conti , and RKL, "Multidimensional topological strings by curved potentials: Simultaneous realization of mobility edge and topological protection," submitted for publication (Feb. 2020); [arXiv: 2002.03091].

    [3] Yu-Chi Wang, Heng Li, Yu-Heng Hong, Kuo-Bin Hong, Fang-Chung Chen, Chia-Hung Hsu, RKL, Claudio Conti, Tsung Sheng Kao, and Tien-Chang Lu, "Flexible Organometal-Halide Perovskite Lasers for Speckle Reduction in Imaging Projection," ACS Nano 13, 5421 (2019) [download].

    [2] Giulia Marcucci, Davide Pierangeli, Aharon J. Agranat, RKL, Eugenio DelRe, and Claudio Conti, "Topological Control of Extreme Waves," Nature Comm. 10, 5090 (2019) [download]; Highlight by Nature Phys. 15, 1210 (2019): Tamed by Topology.  [link].

    [1] Kou-Bin Hong, Chun-Yan Lin, Tsu-Chi Chang, Wei-Hsuan Liang, Ying-Yu Lai, Chien-Ming Wu, You-Lin Chuang, Tien-Chang Lu, Claudio Conti, and RKL, "Lasing on nonlinear localized waves in curved geometry," Optics Express 25, 29068 (2017) [download].


  • Giulia Marcucci, Department of Physics, University Sapienza, Rome, Italy
    [3] Chun-Yan Lin, Giulia Marcucci, You-Lin Chuang, Gang Wang, Claudio Conti, and RKL, "Multidimensional topological strings by curved potentials: Simultaneous realization of mobility edge and topological protection," submitted for publication (Feb. 2020); [arXiv: 2002.03091].

    [2] Yu-Han Chang, Raul A. Robles Robles, Vanna Chrismas Silalahi, Cen-Shawn Wu, Gang Wang, Giulia Marcucci, Laura Pilozzi, Claudio Conti, RKL, and Watson Kuo, "Direct Observation of Topological Protected Edge States in Slow-Light," submitted for publication (Apr. 2020); [arXiv: 2004.09282].

    [1] Giulia Marcucci, Davide Pierangeli, Aharon J. Agranat, RKL, Eugenio DelRe, and Claudio Conti, "Topological Control of Extreme Waves," Nature Comm. 10, 5090 (2019) [download]; Highlight by Nature Phys. 15, 1210 (2019): Tamed by Topology [download].

  • Eugenio DelRe, Department of Physics, University Sapienza, Rome, Italy
    [1] Giulia Marcucci, Davide Pierangeli, Aharon J. Agranat, RKL, Eugenio DelRe , and Claudio Conti, "Topological Control of Extreme Waves," Nature Comm. 10, 5090 (2019) [download]; Highlight by Nature Phys. 15, 1210 (2019): Tamed by Topology [download].


  • Gaetano Assanto, Nonlinear Optics and OptoElectronics Lab (NooEL), Via della Vasca Navale 84, 00146 Rome, Italy
    [3] Chandroth P. Jisha, Alessandro Alberucci, RKL, and Gaetano Assanto , "Deflection and trapping of spatial solitons in linear photonic potentials," Optics Express 21, 18646 (2013) [download].

    [2] Alessandro Alberucci, Chandroth P. Jisha, RKL, and Gaetano Assanto , "Soliton self-routing in a finite photonic potential," Opt. Lett. 38, 2071(2013) [download].

    [1] Chandroth P. Jisha, Alessandro Alberucci, RKL, and Gaetano Assanto , "Optical Solitons and Wave-Particle Duality," Opt. Lett. 36, 1848 (2011) [download].


  • Gerd Leuchs, Max-Planck-Institut fur die Physik des Lichts, Erlangen, Germany
    [1] Popo Yang, Ivan F. Valtierra, Andrei B. Klimov, Shin-Tza Wu, RKL, and Luis L. Sanchez-Soto, and Gerd Leuchs, "The Wigner flow on the sphere," Physica Scripta 94, 044001 (2019); for the New Focus issue: Quantum Optics and Beyond- in honour of Wolfgang Schleich [download].


  • Chandroth P. Jisha, Friedrich Schiller University Jena, Germany
     More

  • Alessandro Alberucci, Friedrich Schiller University Jena, Germany
    [3] Chandroth P. Jisha, Alessandro Alberucci, RKL, and Gaetano Assanto, "Deflection and trapping of spatial solitons in linear photonic potentials," Optics Express 21, 18646 (2013) [download].

    [2] Alessandro Alberucci, Chandroth P. Jisha, RKL, and Gaetano Assanto, "Soliton self-routing in a finite photonic potential," Opt. Lett. 38, 2071(2013) [download].

    [1] Chandroth P. Jisha, Alessandro Alberucci, RKL, and Gaetano Assanto, "Optical Solitons and Wave-Particle Duality," Opt. Lett. 36, 1848 (2011) [download].


  • Shaoming Fei (費少明); Max-Planck-Institute for Mathematics in the Sciences, Leipzig, Germany
    [2] Hai Wang, RKL, Manish Kumar Shukla, Indranil Chakrabarty, Shaoming Fei , and Junde Wu, "Quantum Channels as Temporal Correlations in Quantum Mechanics," submitted for publication (Feb. 2020); [arXiv: 1910.05694].

    [1] Minyi Huang, RKL, Lijian Zhang, Shaoming Fei, and Junde Wu, "Simulating broken PT-symmetric Hamiltonian systems by weak measurement," Phys. Rev. Lett. 123, 080404 (2019) [download].


  • Luis L Sanchez-Soto, Departamento de Optica, Facultad de Fisica, Universidad Complutense, Madrid, Spain
    [1] Popo Yang, Ivan F. Valtierra, Andrei B. Klimov, Shin-Tza Wu, RKL, and Luis L. Sanchez-Soto,, and Gerd Leuchs, "The Wigner flow on the sphere," Physica Scripta 94, 044001 (2019); for the New Focus issue: Quantum Optics and Beyond- in honour of Wolfgang Schleich [download].


  • Ole Steuernagel, School of Physics, Astronomy and Mathematics, University of Hertfordshire, Hatfield, United Kingdom

  • Andrey E. Miroshnichenko, School of Engineering and Information Technology, University of New South Wales, Canberra, Australia
    [5] Jeng Yi Lee, Lujun Huang, Lei Xu, Andrey E. Miroshnichenko, and RKL, "Broadband Control on Scattering Events with Interferometric Coherent Waves," submitted for publication (Mar. 2020).[arXiv: 2003.00252].

    [4] Jeng Yi Lee, Yueh-Heng Chung, Andrey E. Miroshnichenko, and RKL, "Linear control of light scattering with multiple coherent waves excitation," Opt. Lett. 44, 5310 (2019) [download].

    [3] Jeng Yi Lee, Andrey E. Miroshnichenko, and RKL, "Simultaneously nearly zero forward and nearly zero backward scattering objects," Optics Express 26, 30393 (2018) [download].

    [2] Jeng Yi Lee, Andrey E. Miroshnichenko, and RKL, "Reexamination of Kerker’s conditions by means of the phase diagram," Phys. Rev. A 96, 043846 (2017) [download].

    [1] Jeng Yi Lee, Andrey E. Miroshnichenko, and RKL, "Designing quantum resonant scatterers at subwavelength scale," Phys. Lett. A 381, 2860 (2017) [download].


  • Min-Hsiu Hsieh, Centre for Quantum Computation & Intelligent Systems, Faculty of Engineering and Information Technology, University of Technology, Sydney, Australia
    [2] Yi-Chan Lee, Jibing Liu, You-Lin Chuang, Min-Hsiu Hsieh, and RKL, "Passive PT-symmetric couplers without complex optical potentials," Phys. Rev. A 92, 053815 (2015) [download].


    [1] Yi-Chan Lee, Min-Hsiu Hsieh, Steven T. Flemmia, and RKL, "Local PT symmetry violates the no-signaling principle," Phys. Rev. Lett. 112, 130404 (2014) [download]; Editors' Suggestion; Featured in Physics: Reflecting on an Alternative Quantum Theory.  [link]


  • W. Krolikowski, Laser Physics Center, Research School of Physics and Engineering, Australian National University, Canberra, Australia
    [4] Q. Kong, Ming Shen, Z. Chen, Q. Wang, RKL, and Wieslaw Krolikowski, "Dark solitons in nonlocal media with competing nonlinearities," Phys. Rev. A 87, 063832 (2013) [download].

    [3] L. Chen, Q. Wang, Ming Shen, H. Zhao, Y.Y. Lin, C.-C. Jeng, RKL, and Wieslaw Krolikowski, "Nonlocal dark solitons under competing cubic-quintic nonlinearities," Opt. Lett. 38, 13 (2013) [download].

    [2] Ming Shen, J.-J. Zheng, Q. Kong, YuanYao Lin, C.-C. Jeng, RKL, and Wieslaw Krolikowski, "Stabilization of counter-rotating vortex pairs in nonlocal media," Phys. Rev. A 86, 013827 (2012) [download].

    [1] Ming Shen, Qian Kong, Chien-Chung Jeng, Li-Juan Ge, RKL, and Wieslaw Krolikowski, "Instability suppression of vector-necklace-ring solitons in nonlocal media," Phys. Rev. A 83, 023825 (2011) [download].


  • Yuri S. Kivshar, Nonlinear Physics Center, Research School of Physics and Engineering, Australian National University, Canberra, Australia
    [5] Wen-Xing Yang, YuanYao Lin, Tsin-Dong Lee, RKL, and Yuri S. Kivshar , "Nonlinear localized modes in bandgap microcavities," Opt. Lett. 35, 3207 (2010) [download].

    [4] YuanYao Lin, RKL, and Yuri S. Kivshar, "Transverse instability of transverse-magnetic solitons and nonlinear surface plasmons," Opt. Lett. 34, 2982 (2009) [download].

    [3] YuanYao Lin, RKL, and Yuri S. Kivshar, "Suppression of soliton transverse instabilities in nonlocal nonlinear media," J. Opt. Soc. Am. B 25, 576 (2008) [download].

    [2] RKL, Yinchieh Lai, and Yuri S. Kivshar, "Quantum correlations in soliton collisions," Phys. Rev. A 71, 035801 (2005); also selected in Virtual Journal of Quantum Information 5, Issue 4 (2005) [download].

    [1] RKL, Elena A. Ostrovskaya, Yuri S. Kivshar, and Yinchieh Lai, "Quantum-noise properties of matter-wave gap solitons," Phys. Rev. A 72, 033607 (2005) [download].


  • Elena A. Ostrovskaya, Nonlinear Physics Center, Research School of Physics and Engineering, Australian National University, Canberra, Australia
    [1] RKL, Elena A. Ostrovskaya, Yuri S. Kivshar, and Yinchieh Lai, "Quantum-noise properties of matter-wave gap solitons," Phys. Rev. A 72, 033607 (2005) [download].


  • Syed M. Assad, Centre for Quantum Computation and Communication Technology, Department of Quantum Science, Australian National University, Canberra, Australia

  • Ping Koy Lam, Centre for Quantum Computation and Communication Technology, Department of Quantum Science, Australian National University, Canberra, Australia

  • Steven T. Flammia, School of Physics, University of Sydney, Australia

    [1] Yi-Chan Lee, Min-Hsiu Hsieh, Steven T. Flemmia, and RKL, "Local PT symmetry violates the no-signaling principle," Phys. Rev. Lett. 112, 130404 (2014) [download]; Editors' Suggestion; Featured in Physics: Reflecting on an Alternative Quantum Theory.  [link]


  • LIGO Scientific Collaboration

  • Chi-Kwong Li, Department of Mathematics, The College of William & Mary, Williamsburg, VA, United States

  • Gerd Leuchs, Physics Department, Centre for Research in Photonics, University of Ottawa, Ottawa, Canada
    [1] Popo Yang, Ivan F. Valtierra, Andrei B. Klimov, Shin-Tza Wu, RKL, and Luis L. Sanchez-Soto, and Gerd Leuchs, "The Wigner flow on the sphere," Physica Scripta 94, 044001 (2019); for the New Focus issue: Quantum Optics and Beyond- in honour of Wolfgang Schleich [download].


  • Andrei B Klimov, Departamento de Fisica, Universidad de Guadalajara, Jalisco, Mexico
    [1] Popo Yang, Ivan F. Valtierra, Andrei B. Klimov, Shin-Tza Wu, RKL, and Luis L. Sanchez-Soto, and Gerd Leuchs, "The Wigner flow on the sphere," Physica Scripta 94, 044001 (2019); for the New Focus issue: Quantum Optics and Beyond- in honour of Wolfgang Schleich [download].


  • Blas M. Rodríguez-Lara, Tecnológico de Monterrey, Monterrey, Mexico
     More

  • S. A. Chilingaryan, Departamento de Fısica, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
    [1] Raul A. Robles Robles, S. A. Chilingaryan, Blas M. Rodriguez-Lara, and RKL, "Ground state in the finite Dicke model for interacting qubits," Phys. Rev. A 91, 033819 (2015); Images also selected as the Kaleidoscope in Phys. Rev. A [download].


  • Course Notes:

    Textbook

    Text Book: S. Friedberg, A. Insel, and L. Spence, "Linear Algebra," 4th Edition (Pearson).

    Reference Book

    Gilbert Strang, "Introduction to Linear Algebra," International 5th Edition (Wellesley-Cambridge Press).

    RK's goals

    You should go through the whole Textbook.

    Instead of repeating what you can find in the Textbook, I will illustrate the content from Scratch, by raising questions to you first.

    You need to have Quiz (40\% to the semester score) on every Wednesday.

    Syllabus

    • Course Introduction: [link for my scratch notes]
    • Part I: Vector Spaces
    • [Vector Space], [Subspaces], [Bases], Dimensions, Linear Independence, Dual Spaces,
    • Linear Transformation and Matrices
    • [Quiz 1], Quiz 2, Quiz 3, Quiz 4
    • Part II: Elementary Matrix Operation
    • Solving Linear Equations, Elimination, Inverse Matrices
    • Composition, Invertibility and Isomorphisms
    • Inner Product, Norm, Gram-Schmidt Orthogonalization Process
    • Matrix Operations, Rank, Inverse, Determinants,
    • Part III: Operators
    • Normal, Self-Adjoint, Unitary, and Orthogonal
    • Singular Value Decomposition
    • Spectral Theorem, Bilinear and Quadratic Forms

    Evaluation

    Quiz > 12, 40%
    Exams x 3, 60%

    Office hours

    RK: 1:00-5:00 PM, Wednesday, at R 911, Delta Hall, or by appointment.
    TA time: 6:30-8:30 PM, Wednesday, at R 217, Delta Hall

    Expected Outputs:

    Quantum properties of Electromagnetic Fields;

    Non-classical light and its generation, measurement, and applications;

    Interaction between photon-atoms;

    Test of Quantum Mechanics by Optics;

    Syllabus

    Introduction to Quantum Optics

    Quantum Theory,

    Quantum Field theory of Light,

    Number states and Coherent States,

    Squeezed States and Phase Space,

    Simple Optical Instruments:

    Photon-atom interaction:

    Rabi oscillation,

    Jaynes-Cummings Hamiltonian,

    Dicke model,

    Cavity-Quantum Electro-Dynamics (Cavity-QED),

    Electromagnetically Induced Transparency (EIT),

    Optical Parametric Oscillator (OPO),

    Dissipative Systems

    Applications of Quantum Optics:

    Entanglement,

    Horizons,

    Gravitational Wave Detectors,

    Test of Quantum Mechanics,

    Quantum Information Processing

    References:

    U. Leonhardt, "Essential Quantum Optics," Cambridge (2010).

    G. S. Agarwal, "Quantum Optics", Cambridge University (2013).

    D. F. Walls and G. J. Milburn, "Quantum Optics," 2nd Ed. Springer (2008).

    M. Fox, "Quantum Optics, an introduction," Oxford (2006).

    C. C. Gerry and P. L. Knight, "Introductory Quantum Optics,"" Cambridge (2005).

    Y. Yamamoto and A. Imamoglu, "Mesoscopic Quantum Optics," Wiley (1999).

    M. O. Scully, and M. S Zubairy, "Quantum Optics," Cambridge (1997).

    BLOG: RKL 124





    RKL's 124

    Research with us 研究生活

    A glimpse into the world of the Quantum Optics in NTHU .



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    Frogs in my daily life
    生活中的小青蛙

    My personal collection of more than 500 FROOOOOGs, for a Quantum Jump !




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    More than words
    塗鴉

    Making Art is an act of discovery.



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    Contact


    Lab:

    B14, Basement, General Building II (綜合二館), NTHU
    Tel:

    Group Office:

    Rm 615, EECS building (資電館), NTHU
    Tel:



    PRof. Ray-Kuang Lee's Office:

    Rm 911, Delta Hall (台達館), National Tsing Hua University, Hsinchu



    E-mail: