v. 2016/3/8
Band-Pass Filter Simulation (Homework 1) Manual
PME 5443
Mar. 15, 2015
Cheng-Yao Lo
1. Download software (freeware) "OpenFilters" (version 1.0.2) then install it to your
computer. Download it from:
a. Developer site: http://larfis.polymtl.ca/index.php/en/links/openfilters
b. Lecture site: http://mx.nthu.edu.tw/~chengyao/lecture.html
Use version 1.0.2 for Windows. Avoid using version 1.1 on Windows (bugs exist).
For Mac, run version 1.1 (only version 1.1 supports Mac). However, this manual
was prepared with the appearance of version 1.0.2.
2. Find a database for index of refraction (n) and extinction coefficient (k) for
indium-tin-oxide (ITO) from textbooks, Internet, journal paper, conference
proceeding, or any possible ways.
a. Remember where you found those information, you have to identify it (them)
in your report.
b. Some references may only show you single wavelength data, thus you may
refer to more than one references.
3. Obtain the (n, k) values of your two ITOs (in this example, DITO and PITO) at
different wavelengths (s) within 400-700 nm and high/low index of refraction (n)
combination. For example:
(n1, k1) = (1.33, 0) at = 400 nm for PITO,
(n2, k2) = (1.33, 0) at = 600 nm for PITO,
(n3, k3) = (1.33, 0) at = 800 nm for PITO,
(n4, k4) = (2.10, 0) at = 400 nm for DITO,
(n5, k5) = (2.10, 0) at = 600 nm for DITO,
(n6, k6) = (2.10, 0) at = 800 nm for DITO,
a. (n, k) values could be different for different wavelengths,
b. The more digits after the decimal you prepare, the more accurate your
simulation becomes.
c. The more (n, k) sets you prepare, the more accurate your simulation becomes.
For this project, at least 3 and at most 5 sets were required
d. These values seriously influence your simulation results.
4. Start the "OpenFilters" software, make sure not yet to initiate a new project.

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