Tunable multiple-channel filters based on photonic heterostructures using single-negative materials  

作　　者：DENG XinHua LIU NianHua AN LiPing 

机构地区：[1]College of Science, Nanchang University, Nanchang 330031, China [2]Institute for Advanced Study, Nanchang University, Nanchang 330031, China [3]College of Science, Yanshan University, Qinhuangdao 066004, China

出　　处：《Chinese Science Bulletin》2009年第12期2002-2007,共6页

基　　金：Supported by the National Natural Science Foundation of China(Grant No.10664002);Natural Science Foundation of Jiangxi Province(Grant No.2008GZW0003);Science and Technology Project of Education Department of Jiangxi Province(Grant No.GJJ09073);PCSIRT from China(Grant No.IRT0730)

摘　　要：We studied the multiple-channel filters based on photonic heterostructures consisting of single-negative permittivity and single-negative permeability media. The results showed that the number of resonance modes inside the zero-φeff gap increases as the number of heterogenous interface M increases. The number of resonance modes inside the zero-φeff gap is equal to that of heterogenous interface M, and it can be used as M channels filter. This result provides a feasible method to adjust the channel number of multiple-channel filters. When losses are involved, the results showed that the electric fields of the resonance modes decay largely with the increase of the number of heterogenous interface and damping factors. Besides, the relationship between the quality factor of multiple-channel filters and the number of heterogenous interface M is linear, and the quality factor of multiple-channel filters decreases with the increase of the damping factor. These results provide feasible methods to adjust the quality factor of multiple-channel filters.We studied the multiple-channel filters based on photonic heterostructures consisting of single-negative permittivity and single-negative permeability media. The results showed that the number of resonance modes inside the zero-φeff gap increases as the number of heterogenous interface M increases. The number of resonance modes inside the zero-φeff, gap is equal to that of heterogenous interface M, and it can be used as M channels filter. This result provides a feasible method to adjust the channel number of multiple-channel filters. When losses are involved, the results showed that the electric fields of the resonance modes decay largely with the increase of the number of heterogenous interface and damping factors. Besides, the relationship between the quality factor of multiple-channel filters and the number of heterogenous interface M is linear, and the quality factor of multiple-channel filters decreases with the increase of the damping factor. These results provide feasible methods to adjust the quality factor of multiple-channel filters.

关 键 词：多通道滤波器 异质结构 负极材料 基础 光子 异质界面 可调 共振模式 

分 类 号：TN929.11[电子电信—通信与信息系统] TN304.2[电子电信—信息与通信工程]