异质结构光子晶体的能带特性研究  

The Bandgap Properties of One Dimension Heterostructure Photonic Crystal

作　　者：赵玉辉[1] 张会云[2] 郑义[1] 

机构地区：[1]郑州大学河南省激光与光电信息技术重点实验室,河南郑州450052 [2]天津大学精仪学院激光与光电子研究所教育部光电信息技术科学重点实验室,天津300072

出　　处：《量子光学学报》2006年第3期159-162,共4页Journal of Quantum Optics

基　　金：国家自然科学基金项目(60478021);河南省创新人才培养对象基金

摘　　要：运用光学传输矩阵理论,研究了异质结构光子晶体的能带特性。结果表明,与周期结构相比异质结构光子晶体可以显著地拓宽光子晶体的光子带隙;在该文提出的结构中引入缺陷,与(1H1L)m(1H)n(1L1H)m光子晶体相比,产生缺陷模式光子带隙范围明显拓宽,适当调整缺陷层的数目、位置和厚度可得到多通道滤波;并研究了实际操作中随机误差带来的影响,随无序度的增大,其带宽基本不变。The bandgap properties of one dimension heterostructure photonic crystal are investigated with the optical transfer matrix method. The results show that the heterostructure photonic crystal can extend remarkably the photonic bandgap compared with the periodic structure; a defect is inserted into the heterostructure photonic crystal, the nontransmission band is wider than that of the symmetric structure without heterostructures, （1 H1L）m （1H） n（1L1H） m. The multiple-channeled filtering can be obtained through adjusting the number, position, and size of the defects. One, two channeled filters are considered in the structures; This paper also discusses the influence of disorder degree on the photonic bandgap which is gradually extended with the increasing disorder degree. Such structures can be used to select useful optical signals from a wide frequency range.

关 键 词：光子晶体 异质结构 无序度 光子带隙 

分 类 号：O431[机械工程—光学工程]