Some reflections on double negative materials

被引：50

作者：

Chew, W. C. ^{[1
]}

机构：

[1] Univ Illinois, Dept Elect & Comp Engn, Ctr Computat Electromagnet, Urbana, IL 61801 USA

[2] Univ Illinois, Dept Elect & Comp Engn, Electromagnet Lab, Urbana, IL 61801 USA

[3] AFRL, IPA, Dayton, OH USA

来源：

PROGRESS IN ELECTROMAGNETICS RESEARCH-PIER | 2005年 / 51卷

关键词：

D O I：

10.2528/PIER04032602

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We study the energy conservation property and loss condition of a left-handed material (LHM). First we argue by energy conservation that an LHM has to be a backward-wave material (BWM). Then we derive the equivalence of the loss and the Sommerfeld far-field radiation conditions for BWM. Next, we solve the realistic Sommerfeld problem of a point source over an LHM half space and an LHM slab. With this solution, we elucidate the physics of the interaction of a point source with an LHM half space and an LHM slab. We interpret our observation with surface plasmon resonance at the interfaces as well as the resonance tunneling phenomenon. This analysis lends physical insight into the interaction of a point source field with an LHM showing that super-resolution beyond the diffraction limit is possible with a very low loss LHM slab.

引用

页码：1 / 26

页数：26

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