Between right- and left-handed media

被引：8
|
作者：
Ingrey, P. C. [1 ]
Hopcraft, K. I. [1 ]
Jakeman, E. [1 ]
French, O. E. [1 ]
机构：
[1] Univ Nottingham, Sch Math Sci, Nottingham NG7 2RD, England
来源：
OPTICS COMMUNICATIONS | 2009年 / 282卷 / 05期
基金：
英国工程与自然科学研究理事会;
关键词：
Metamaterials; Graded index; GRIN; Left-handed media; LHM; Transitional layer; Localization effects;
D O I：
10.1016/j.optcom.2008.11.037
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report analytical calculations for the propagation of electromagnetic radiation through an inhomogeneous layer whose refractive index varies in one-dimension situated between bulk right- and left-handed media. Significant field localization is generated in the layer that is caused by the coherent superposition of evanescent waves. The strength of the field localization and the transmission proper-ties of the layer are investigated as a function of the layer width, losses and defects in the refractive index; the former two being modelled by continuous changes, and the latter by discontinuous changes, in the index profile. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：1020 / 1027
页数：8
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