Finite-size effects of a left-handed material slab on the image quality

被引：121

作者：

Chen, L

He, SL ^{[1
]}

Shen, LF

机构：

[1] Royal Inst Technol, Ctr Opt & Electromagnet Res, State Key Lab Modern Opt Instrumentat, Joint Res Ctr Photon, Kista, Sweden

[2] Zhejiang Univ, Hangzhou 310027, Peoples R China

[3] Royal Inst Technol, Dept Microelect & Informat Technol, Lab Photon & Microwave Engn, S-16440 Kista, Sweden

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 92卷 / 10期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1103/PhysRevLett.92.107404

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 left-handed material (LHM) slab of finite length are studied, and the influence of the finite length of the slab on the image quality is analyzed. Unusual phenomena such as surface bright spots and negative energy stream at the image side are observed and explained as the cavity effects of surface plasmons excited by the evanescent components of the incident field. For a thin LHM slab, the cavity effects are found rather sensitive to the length of the slab; the bright spots on the bottom surface of the slab may stretch to the image plane and degrade the image quality.

引用

页码：107404 / 1

页数：4

共 13 条

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