摘要
利用光在一维光子晶体中传播的色散关系,提出了一种禁带边缘分析法,以研究一维光子晶体禁带特征的方法.该方法利用色散关系引入一个确定禁带边缘位置的函数F,F=0为禁带边缘的位置.通过绘出函数F的图线,由F=0确定禁带边缘的位置,进而分析得到禁带和允许带的特征.它避免了常用的特征矩阵法中对反射率复杂的数值计算,并能得到与特征矩阵法相同的结果.
Applied light＇s forbidden band to study function F applied disper dispersive relation in one-dimensional photonic crystal,a on characteristic of forbidden band is proposed. That sive relation for find out position of edge forbidden ban analysis method of edge method led to go into a d. F=O is edge position of forbidden band. Draw diagram line of F,pass F=O assurances position of edge forbidden band, then analyze is characteristic of forbidden band and allow band. It avoided the complicated number calculation of the characteristic matrix method ,and can get with the result with the characteristic matrix method homology. So it is a kind of simple but valid method.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2007年第6期1031-1034,共4页
Acta Photonica Sinica
关键词
光子晶体
禁带宽度
色散关系
简便方法
Photonic crystal
Widen forbidden band
Dispersive relation
Simple and convenient method
