两端对称缺陷复合光子晶体特性研究  

Properties of compound photonic crystal with two symmetrical defect layer at the two sides

作　　者：陈海波[1] 胡素梅[1] 高英俊[2] 

机构地区：[1]广东石油化工学院物理系,广东茂名525000 [2]广西大学物理科学与工程技术学院,广西南宁530004

出　　处：《激光与红外》2011年第3期309-313,共5页Laser & Infrared

基　　金：国家自然科学基金项目(No.50661001);广西科学基金项目(桂科基No.0342004-1);茂名学院自然科学基金项目(No.200853)资助

摘　　要：用传输矩阵法计算了两端对称缺陷复合光子晶体的传输特性。计算结果表明:两端对称缺陷复合光子晶体[D(AB)mD]2结构中的禁带出现两个完全共振透射峰。通过控制温度来微小改变光子晶体介电层的厚度,使得完全共振透射峰移动,且各介质厚度的变化与透射峰波长的变化呈良好的线性关系,折射率大的介电层厚度的变化对共振透射峰波长的变化较大。此结果为设计所需要的共振透射峰波长的双通道滤波器提供了理论依据,也为该结构实现热敏开关提供了理论基础。By using the method of optical transfer maxtrix,the optical transmission properties of compound photonic crystal with two symmetrical defect layer at the two ports are studied.The investigation results show that two resonance transmittance peaks exist in the band gap in dual-period photonic crystal [D（AB）mD]2 structure.The resonance transmittance peaks will shift with the small changes of the dielectric thickness of photonic crystal induced by a control temperature.The dependence of the wavelength change of transmittance peaks for [D（AB）mD]2 structure on each dielectric thickness change is linear.The larger the dielectric constants,the more resonance transmittance peaks effect on the dielectric thickness.The conclusion is might be used to dual-channeled filters and temperature sensing switching.

关 键 词：复合光子晶体 介质厚度 双通道滤波 热敏开关 

分 类 号：O431[机械工程—光学工程]