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Designing complex optical filters using photonic crystal microcavitites

Soltani, Mohammad and Haque, Amil and Momeni, Babak and Adibi, Ali and Xu, Yong and Lee, Reginald K. (2003) Designing complex optical filters using photonic crystal microcavitites. In: Photonic Crystal Materials and Devices. Proceedings of SPIE. No.5000. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, pp. 257-265. ISBN 9780819448002.

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By adding a point defect to a photonic crystal structure, a microcavity can be made to trap electromagnetic energy with wavelength inside the photonic bandgap (PBG). This property together with other unique properties of photonic crystals enables us to control the propagation and spectrum of transmitted wave inside the photonic crystal waveguiding structures and to design and implement microscale optical filters. In this paper we focus on the design of notch filters in photonic crystal waveguides based on the coupling of waveguide and cavity. We discuss about the properties of a single cavity and its necessary modifications to achieve efficient coupling between cavity and waveguide and eventually obtain desired notch filters at the frequency range of interest. We also discuss the coupling of multi-cavities to a waveguide and the possibility of attaining filters with better performances is presented, and the spectrum and lineshapes of the resulting filters are characterized.

Item Type:Book Section
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Additional Information:© 2003 Society of Photo-Optical Instrumentation Engineers (SPIE).
Subject Keywords:Photonic Crystal, Cavity, Waveguide, Filter
Series Name:Proceedings of SPIE
Issue or Number:5000
Record Number:CaltechAUTHORS:20190221-110520074
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Official Citation:Mohammad Soltani, Amil Haque, Babak Momeni, Ali Adibi, Yong Xu, and Reginald K. Lee "Designing complex optical filters using photonic crystal microcavitites", Proc. SPIE 5000, Photonic Crystal Materials and Devices, (9 July 2003); doi: 10.1117/12.480062;
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:93071
Deposited By: George Porter
Deposited On:28 Feb 2019 00:26
Last Modified:16 Nov 2021 16:55

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