Design of Narrowband Optical Filters Using Binary Number Sequence Photonic Crystals |
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Authors: | Anirudh Banerjee |
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Institution: | (1) Department of Electronics and Communication, Amity University, Lucknow, 226010, U.P., India |
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Abstract: | A theory to design narrow band optical filters by using a new photonic crystal structure is presented. This new photonic crystal
structure is composed of low index layers and high index layers arranged in mod. 4 up and down binary number sequence. The
new structure exhibits narrow transmission peaks in the forbidden frequency gap region with high optical transmission (greater
than 99.98%) at C.W.D.M. (Coarse Wavelength Division Multiplexing) center wavelengths. The proposed filters use only 8 layers.
These new binary number sequence photonic crystal narrowband optical filters are much smaller in size, lower in cost and easier
to fabricate as compared to narrowband photonic crystal optical filters based on defect Fractal Cantor multilayers, suggested
recently by a group of researchers. |
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Keywords: | Cantor multilayers Random photonic crystals Photonic band gaps Optical filters |
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