作　　者： ; ; ;

机构地区： 华南师范大学物理与电信工程学院

出　　处： 《中国激光》 2010年第12期3098-3102,共5页

摘　　要： 运用传输矩阵法,计算了由正、负折射率材料构造的一维光子晶体的反射波的相位特性。在该结构的零平均折射率(zero-n)带隙范围内,TE波和TM波的反射相位差随着入射角的增大而增大,且在很宽的频率范围内(相对带宽Δω/ω>19%)保持一定值。利用此特性,可以设计一种反射型相位补偿器。计算了缩放因子、材料厚度比、折射率和周期对相位补偿器的影响。 Properties of reflection phase in one-dimensional photonic crystals constituted by alternating layers of negative-and positive-index materials were investigated by transfer matrix method.The results show that the reflection phase difference between TE and TM waves in the zero-An-G gap increases with the incident angle,and remains almost unchanged in a broad frequency band（the relative spectral bandwidth Δω/ω19%）.Based on properties,phase compensators with some advantages such as working effectively in a broad frequency range and continuously tunable compensatory phase etc.The influences of the changes of the scale factor,the thicknesses ratio,the refractive index and the period number on the phase compensators were also investigated.

关 键 词： 一维光子晶体 负折射率材料 零平均折射率带隙 反射相位 相位补偿器

领　　域： [理学] [理学]