Guided modes in a symmetric five-layer left-handed waveguide

被引:14
|
作者
He, Ying [1 ]
Zhang, Jing [1 ]
Li, Chunfang [1 ,2 ]
机构
[1] Shanghai Univ, Dept Phys, Shanghai 200444, Peoples R China
[2] Chinese Acad Sci, State Key Lab Transient Opt & Photon, Xian Inst Opt & Precis Mech, Xian 710119, Peoples R China
基金
中国国家自然科学基金;
关键词
D O I
10.1364/JOSAB.25.002081
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The guided modes are investigated in a symmetric five-layer slab waveguide with a core of negative refractive index material surrounded by four normal dielectrics. The graphical method is applied to determine the guided optical modes, The left-handed material waveguide supports both oscillating and surface guided modes. For oscillating guided modes the fundamental mode can be supported. Mode double-degeneracy appears and some modes are absent in the five-layer waveguide. High-order surface guided modes exist due to the oscillating electric field in the inner claddings. Energy flux for the oscillating and surface guided modes is also discussed in detail. (C) 2008 Optical Society of America
引用
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页码:2081 / 2091
页数:11
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