Title :
A novel photonic crystal bandpass filter using degenerate modes of point-defect microcavity for terahertz communication system
Author :
Kamiji, Y. ; Nagaoka, Naoto ; Chen Chun-Ping ; Anada, Takahisa ; Hsu Jui-Pang
Author_Institution :
Dept. Of Electr. Eng., Kanagawa Univ., Yokohama, Japan
Abstract :
A novel type of dual-mode square lattice photonic selectivity narrowband bandpass filters in the terahertz communication system. In order to design a high quality factor Q microcavity, the photonic bandgap is firstly calculated by using the PWE method. Secondly, the eigen-frequencies and EM fields of a point defect microcavity generating localized states in the bandgap are calculated by a supercell method. Finally, the property of mode separation of degenerate modes is investigated for photonic crystal point-defect microcavities and proposed dual mode bandpass filters are studied by TD-BPM and full-wave time-domain method.
Keywords :
Q-factor; band-pass filters; eigenvalues and eigenfunctions; microcavities; photonic band gap; photonic crystals; point defects; terahertz wave devices; time-domain analysis; EM fields; PWE method; TD-BPM; degenerate modes; dual-mode square lattice photonic selectivity narrowband bandpass filters; eigenfrequencies; full-wave time-domain method; high quality factor Q microcavity; mode separation; photonic crystal bandpass filter; photonic crystal point-defect microcavities; point-defect microcavity; terahertz communication system; Band pass filters; Cavity resonators; Dielectrics; Microcavities; Photonic band gap; Resonant frequency; Bandgap; Degenerate modes; Microcavity; Photonic crystal; Planar dielectric circuit; Terahertz;
Conference_Titel :
Microwave Conference Proceedings (APMC), 2012 Asia-Pacific
Conference_Location :
Kaohsiung
Print_ISBN :
978-1-4577-1330-9
Electronic_ISBN :
978-1-4577-1331-6
DOI :
10.1109/APMC.2012.6421671
