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

Chun-Ping, Chen; Anada, Tetsuo; Greedy, Steve; Benson, Trevor M.; Sewell, Phillip

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.

Citation

Chun-Ping, C., Anada, T., Greedy, S., Benson, T. M., & Sewell, P. (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), 792-797. https://doi.org/10.1002/mop.28204

• Journal Article Type: Article
• Acceptance Date: Nov 24, 2013
• Online Publication Date: Feb 27, 2014
• Publication Date: 2014-04
• Deposit Date: Apr 2, 2014
• Publicly Available Date: Apr 2, 2014
• Journal: Microwave and Optical Technology Letters
• Print ISSN: 0895-2477
• Electronic ISSN: 0895-2477
• Publisher: Wiley
• Peer Reviewed: Peer Reviewed
• Volume: 56
• Issue: 4
• Pages: 792-797
• DOI: https://doi.org/10.1002/mop.28204
• Public URL: https://nottingham-repository.worktribe.com/output/996270
• Publisher URL: https://onlinelibrary.wiley.com/doi/abs/10.1002/mop.28204