A novel bandpass filter using higher-order degenerate modes of planar photonic crystal microcavity in terahertz regime

Author

Chun-Ping Chen ; Kamiji, Y. ; Oda, J. ; Nagaoka, Naoto ; Anada, Takahisa ; Takeda, Shigeki

Author_Institution

Dept. of Electr. Eng., Kanagawa Univ., Yokohama, Japan

fYear

2012

Firstpage

806

Lastpage

809

Abstract

This paper presents a new dual-mode bandpass filter using higher-order degenerate resonant modes of a square lattice photonic crystal microcavity in terahertz frequency band. In order to design a photonic crystal high-Q microcavity, the dispersion relations of photonic bandgap are firstly calculated by using the plane wave expansion method. Secondly, the transmission properties of photonic crystal waveguides, microcavities and the proposed dual mode filters for THz applications are numerically investigated by using simplified TD-BPM and full-wave FDTD.

Keywords

band-pass filters; dispersion (wave); finite difference time-domain analysis; microcavities; photonic band gap; photonic crystals; submillimetre wave filters; FDTD; TD-BPM; dispersion relations; dual-mode bandpass filter; finite difference time-domain analysis; higher-order degenerate modes; photonic bandgap; photonic crystal waveguides; planar photonic crystal microcavity; plane wave expansion method; square lattice photonic crystal microcavity; terahertz frequency band; Band-pass filters; Cavity resonators; Dielectrics; Lattices; Microcavities; Photonic crystals; Resonant frequency; Bandgap; Dual-mode filter; Microcavity; Photonic crystal; Planar dielectric circuit; Terahertz;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Integrated Circuits Conference (EuMIC), 2012 7th European

Conference_Location

Amsterdam

Print_ISBN

978-1-4673-2302-4

Electronic_ISBN

978-2-87487-026-2

Type

conf

Filename

6483923