分形光子晶体频谱的自相似特性及应用  

Self-Similarity and Application of the Frequency Spectra of Fractal Cantor Photonic Crystals

作　　者：肖中银[1] 王子华[1] 胡红虹[1] 徐贺明[1] 

机构地区：[1]上海大学通信与信息工程学院,上海200072

出　　处：《上海大学学报（自然科学版）》2007年第4期461-464,共4页Journal of Shanghai University:Natural Science Edition

基　　金：东南大学毫米波国家重点实验室基金资助项目(K200602);上海市教委发展基金资助项目(217608);上海市重点学科建设资助项目(T0102)

摘　　要：研究了分形康托结构光子晶体频谱的自相似特性,用光传输矩阵方法计算光的传输和反射系数.结果表明,分形康托多层结构频谱具有明显的自相似特性,这种频谱的自相似特性是由于结构的自相似性引起的.和普通光子晶体不同的是分形光子晶体同时具有阻带和缺陷的功能,即在阻带的中间产生了缺陷模.并研究了影响阻带特性的因素及这种结构的应用.Self-similarity of the frequency spectra of fractal photonic crystals is studied. The optical transmission matrix method is used to calculate transmittance and reflectance. The result shows that there is obvious self-similari general PBG, this ty in Cantor multilayer, resulted from the structural self-similarity. Being different from structure has stopbands and is also of defect modes. Factors affecting the stopband characteristic and applications of the structure are also studied.

关 键 词：自相似特性 分形康托结构 传输矩阵 反射和透射系数 

分 类 号：O437[机械工程—光学工程]