Title :
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
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 :
finite difference time-domain analysis; integrated optics; micro-optics; optical design techniques; optical filters; photonic band gap; photonic crystals; dispersion relations; dual-mode bandpass filter; full-wave FDTD; higher-order degenerate resonant modes; photonic bandgap; photonic crystal waveguides; planar photonic crystal microcavity; plane wave expansion method; simplified TD-BPM; square lattice photonic crystal microcavity; terahertz regime; Band pass filters; Cavity resonators; Dielectrics; Lattices; Microcavities; Photonic crystals; Resonant frequency; Bandgap; Dual-mode filter; Microcavity; Photonic crystal; Planar dielectric circuit; Terahertz;
Conference_Titel :
Microwave Conference (EuMC), 2012 42nd European
Print_ISBN :
978-1-4673-2215-7
Electronic_ISBN :
978-2-87487-026-2
