Studies of imaging characteristics for a slab of a lossy left-handed material

被引：13
|
作者：
Shen, LF [1 ]
He, SL
机构：
[1] Zhejiang Univ, Ctr Opt & Electromagnet Res, State Key Lab Modern Opt Instrumentat, Hangzhou 310027, Peoples R China
[2] Royal Inst Technol, Div Electromagnet Theory, Alfven Lab, S-10044 Stockholm, Sweden
来源：
PHYSICS LETTERS A | 2003年 / 309卷 / 3-4期
关键词：
D O I：
10.1016/S0375-9601(03)00168-3
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The characteristics of an imaging system formed by a slab of a lossy left-handed material (LHM) are studied. The transfer function of the LHM imaging system is written in an appropriate product form with each term having a clear physical interpretation. A tiny loss of the LHM may suppress the transmission of evanescent waves through the LHM slab and this is explained physically. An analytical expression for the resolution of the imaging system is derived. It is shown that it is impossible to make a subwavelength imaging by using a realistic LHM imaging system unless the LHM slab is much thinner than the wavelength. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：298 / 305
页数：8
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