摘要
The band structures of two-dimensional(2D)gyromagnetic photonic crystals(PCs)are analyzed by a modified finite difference time domain(FDTD)method.A special implementation is used to tackle the magnetic constitution equation.This method avoids the discretizing complexity in the time domain caused by nonlinear frequency dependence of anisotropy permeability tensor,and therefore keeps the fully explicit nature of the original FDTD method.Our implementation is proved by the band structure calculations using other methods and the transmission measurements of 2D gyromagnetic PC involving circular ferrite rods and square rods.
作者
LI Qing-Bo
WU Rui-Xin
YANG Yan
SUN Hui-Ling
李清波;伍瑞新;杨艳;孙慧玲(Department of Electronic Sciences and Engineering,Nanjing University,Nanjing 210093;School of Physics and Electronic Electrical Engineering,Huaiyin Normal University,Huai'an 223300)
基金
Supported by the National Natural Science Foundation of China(61271080,61001017,61071007)
the RFDP(20110091110030 and 20100091120045)
the STP of Jiangsu Province(BK2012722)
Jiangsu Key Laboratory of Advanced Techniques for Manipulating Electromagnetic Waves.
