Two-Dimensional Metallic Photonic Crystal with Point Defect Analysis Using Modified Finite-Difference Frequency-Domain Method

Author

Li, Y.L. ; Xue, Q.-Z. ; Du, C.H.

Author_Institution

Key Lab. of High Power Microwave Sources & Technol., Chinese Acad. of Sci., Beijing, China

Volume

28

Issue

2

fYear

2010

Firstpage

216

Lastpage

222

Abstract

We have derived a modified finite-difference frequency-domain (FDFD) algorithm for two-dimensional (2-D) metallic photonic crystal (MPC) analysis. Using this method, the numerical results for the transverse-electric (TE) and transverse-magnetic (TM) modes in square and triangular lattices are in excellent agreements with those from other method. Then the correspondence of the band gaps between a unit cell and a supercell is demonstrated. Furthermore, by comparing the field distributions of the defect modes in a point defected MPC and a point defected dielectric photonic crystal (DPC), it is found that the defect MPC has a higher degree of localization, which means that MPC is preponderant for resonator and waveguide applications in millimeter wave and sub-millimeter wave bands.

Keywords

finite difference methods; optical materials; photonic band gap; photonic crystals; point defects; defect modes; dielectric photonic crystal; finite-difference frequency-domain method; localization; millimeter wave bands; optical resonator; optical waveguide; photonic band gap; point defect analysis; square lattices; submillimeter wave bands; transverse-electric mode; transverse-magnetic mode; triangular lattices; two-dimensional metallic photonic crystal; Defect; finite-difference frequency-domain; photonic crystal; supercell;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2009.2034871

Filename

5290022