摘要
以砷化镓圆形介质柱在空气中构成二维六边形排列结构的光子晶体为例,利用时域有限差分法模拟研究了光子晶体表面结构改变对负折射透射光强的影响.模拟结果表明:针对同一结构光子晶体,在可产生负折射现象的入射光频率范围,改变光子晶体表面两侧圆形介质柱的半径和顺向侧移两侧表面最外层圆形介质柱都会均对负折射透射光强产生影响.
The photonic crystals of hexagonal structure with GaAs circle rods are taken as examples to illuminate dependence of intensity of transmitted light on the change of surface structure of the PC. Simulation with finite difference time domain method shows that the change of radius of outside rods and the displacement of the outermost layer circle rods will have effect on intensity of negative transmitted light, in frequency range where negative refraction exist for the same photo crystal.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2010年第9期1562-1566,共5页
Acta Photonica Sinica
基金
国家重点基础研究发展计划(2005CB724304)
国家自然科学基金(60777045)资助
关键词
负折射
光子晶体
表面结构
透射光强
Negative refraction
Photonic crystal
Surface structure
Intensity of transmitted light
