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一维光子晶体平板波导特性研究

发表时间:2008-04-15  浏览量:1663  下载量:759
全部作者: 汪忠柱,吴先良,沙威
作者单位: 安徽大学光电信息获取与控制教育部重点实验室;安徽大学电子科学与技术学院
摘 要: 本文将一维光子晶体平板波导等效为“光子晶体+衬底(波导层)+光子晶体”的“三明治”结构,采用传输矩阵法分析了电磁波正入射时光子晶体的禁带特性,其第一禁带中心频率为86.3 THz,频宽为73~99 THz。同时,根据多层介质平板波导理论分析方法研究了频率在第一禁带范围内的电磁波在一维光子晶体平板波导中的传输特性。研究结果表明,波导传输的是TE和TM主模,对于高次模式,不能在波导中传输;另外,TE主模的功率约束因子Γ在0.99~1之间,说明电磁场完全约束在波导层内,与光子晶体理论预期结果一致。
关 键 词: 电磁场与微波;光子晶体平板波导;光子禁带;传输模式;功率约束因子
Title: Analysis of one-dimensional photonic crystal planar waveguide
Author: WANG Zhongzhu, WU Xianliang,SHA Wei
Organization: Key Laboratory of Opto-electric Information Acquisition and Manipulation, Anhui University, Ministry of Education;School of Electronic Scienee ard Technology, Anhui University
Abstract: One-dimensional photonic crystal planar waveguide is presented as sandwich structure of a dielectric planar guide stacked by one-dimensional photonic crystals consisting of a periodic multilayer planars. Transfer matrix method (TMM) is used to analyze stop band property of one-dimensional photonic crystals at the normal incidence for electromagnetic wave, its first stop band lies in the range of 73~99 THz, the center frequency is 86.3 THz. Additionally, transmission properties of one-dimensional photonic crystal planar waveguide in the range of fivst stop band is investigated based on multilayer dielectric planar waveguide analysis method. The results show that only TE and TM main modes can propagate in waveguide, furthermore, power constrained factor (Γ) of TE main mode is in 0.99~1, in other words, electromagnetic wave is fully constrained in dielectric planar guide, which is coined with the prediction property of photonic crystals.
Key words: electromagnetic field and microwave; photonic crystal planar waveguide; photonic band-gap; guidance mode; power constrained factor
发表期数: 2008年8月第7期
引用格式: 汪忠柱,吴先良,沙威. 一维光子晶体平板波导特性研究[J]. 中国科技论文在线精品论文,2008,1(7):773-778.
 
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