含左手材料对称五层平面波导模场特性(英文)  

Oscillating Guided Modes in a Symmetric Five-layer Slab Waveguide with Left-handed Material

作　　者：沈陆发[1,2] 叶余千[1] 王子华[3] 

机构地区：[1]浙江大学光及电磁波研究中心,杭州310058 [2]湖州师范学院理学院,浙江湖州313000 [3]上海大学通信与信息工程学院,上海200072

出　　处：《光子学报》2010年第4期634-638,共5页Acta Photonica Sinica

基　　金：Supported by the National Basic Research Program ofChina(2004CB719800);the Swedish Research Council(VR) Grant on Metamaterials

摘　　要：对芯层为左手材料而内外包层都是普通材料的对称五层平面波导进行了探讨.得到了两类TE振荡模的色散方程,且在考虑材料色散的条件下,画出了相关模式的色散曲线.随着模阶数的增加,模色散曲线左移,它们的截止频率变小.其次,发现零阶TE振荡模的存在.除此以外,TE振荡模有三类色散特性:正常色散;反常色散;双模简并.A surrounded dispersion, dispersion symmetric five-layer slab waveguide with a core of left-handed material and by four normal dielectrics is investigated. Under the consideration of material he dispersion equations for the TE oscillating guided modes are obtained and mode curves are plotted. It is found that zero-order TE oscillating guided mode is exist. With the increase of mode number, mode dispersion curves move to left, and their cutoff frequencies decrease. Besides, some modes have three dispersion properties, normal dispersion, abnormal dispersion and mode double-degeneracy.

关 键 词：平面波导 左手材料 色散方程 色散曲线 

分 类 号：TN252[电子电信—物理电子学]