FDTD algorithm for computing the off-plane band structure in a two-dimensional photonic crystal with dielectric or metallic inclusions

被引：27
作者：
Qiu, M [1 ]
He, SL
机构：
[1] Royal Inst Technol, Dept Electromagnet, S-10044 Stockholm, Sweden
[2] Zhejiang Univ, State Key Lab Modern Opt Instrumentat, Ctr Opt & Electromagnet Res, Hangzhou 310027, Peoples R China
来源：
PHYSICS LETTERS A | 2001年 / 278卷 / 06期
关键词：
D O I：
10.1016/S0375-9601(00)00795-7
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
An effective numerical method based on the finite-difference time-domain scheme for computing the off-plane band structure of a two-dimensional photonic crystal is presented. The method is an order N method, and requires only a two-dimensional discretization mesh for a given off-plant wave number k(z) although thr off-plane propagation is a three-dimensional problem. The computation time and memory required is thus reduced significantly. The present method can be used for any type of inclusions and no additional effort is needed for metallic inclusions. The off-plane band structures of a square lattice of metallic rods in the air are studied, and a complete bandgap for some nonzero off-plane wave number k(z) is found. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：348 / 354
页数：7
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