Symmetric multilayer slab waveguide structure with a negative index material: TM case

被引：32
|
作者：
Taya, Sofyan A. [1 ]
El-Farram, Eman J. [1 ]
Abadla, Mazen M. [2 ]
机构：
[1] Islamic Univ, Dept Phys, Gaza, Israel
[2] Alaqsa Univ, Dept Phys, Gaza, Israel
来源：
OPTIK | 2012年 / 123卷 / 24期
关键词：
Negative-index materials; Slab waveguide; Modal refractive index; SENSITIVITY; MODES; POLARITONS; SURFACE;
D O I：
10.1016/j.ijleo.2011.11.016
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The present paper deals with the theoretical modeling of symmetrical multilayer planar waveguide structure. One of the layers is considered as a negative refractive index material. We take the appropriate field distributions for p-polarization and impose the boundary conditions to derive the mode equation and other necessary formulae for the proposed structure. The effect of the negative-index layer on the modal refractive index, power flow, and penetration depth of the waveguide is studied. Also, we compare our computed results with those obtained for a similar conventional four-layer structure. It is observed that the presence of the negative-index material reduces the power flowing in the guiding layer and enhances the power flowing in the surroundings. (C) 2011 Elsevier GmbH. All rights reserved.
引用
收藏
页码：2264 / 2268
页数：5
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