A novel photonic crystal band-pass filter using degenerate modes of a point-defect microcavity for terahertz communication systems

Chun-Ping, Chen and Anada, Tetsuo and Greedy, Steve and Benson, Trevor M. and Sewell, Phillip (2014) A novel photonic crystal band-pass filter using degenerate modes of a point-defect microcavity for terahertz communication systems. Microwave and Optical Technology Letters, 56 (4). pp. 792-797. ISSN 0895-2477

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Abstract

Compact devices are important for the realization of terahertz communications systems. This article proposes a novel photonic crystal-based device for realizing microminiature, high-selectivity high Q band-pass filters (BPF) and the design of a dual-mode square lattice photonic crystal BPF that utilizes the degenerated modes of a point defect microcavity is presented. To design a high Q microcavity, the photonic band-gap is initially calculated using the plane wave expansion method. Second, the eigenfrequencies and modal fields of a point defect microcavity that generates localized states in the band-gap are calculated by a supercell method. Finally, the characteristics of mode splitting and the proposed dual-mode BPFs are numerically studied by a full-wave time-domain method.

Item Type: Article
Schools/Departments: University of Nottingham UK Campus > Faculty of Engineering > Department of Electrical and Electronic Engineering
Identification Number: https://doi.org/10.1002/mop.28204
Depositing User: de Sousa, Mrs Shona
Date Deposited: 02 Apr 2014 13:11
Last Modified: 15 Sep 2016 17:20
URI: http://eprints.nottingham.ac.uk/id/eprint/2674

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