Sub-wavelength imaging with a left-handed material flat lens

被引：45

作者：

Feise, MW

Kivshar, YS

机构：

[1] Australian Natl Univ, Nonlinear Phys Ctr, Canberra, ACT 0200, Australia

[2] Australian Natl Univ, CUDOS, Res Sch Phys Sci & Engn, Canberra, ACT 0200, Australia

来源：

PHYSICS LETTERS A | 2005年 / 334卷 / 04期

基金：

澳大利亚研究理事会;

关键词：

left-handed material; double-negative material; negative refractive index; image resolution; surface waves;

D O I：

10.1016/j.physleta.2004.11.031

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study numerically, by means of the pseudospectral time-domain method, the unique features of imaging by a flat lens made of a left-handed metamaterial that possesses the property of negative refraction. We confirm the earlier finding that a left-handed flat lens can provide near-perfect imaging of a point source and a pair of point sources with clear evidence of sub-wavelength resolution. We illustrate the limitation of the resolution in the time-integrated image due to the presence of surface waves. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：326 / 330

页数：5

共 22 条

[1] A PERFECTLY MATCHED LAYER FOR THE ABSORPTION OF ELECTROMAGNETIC-WAVES [J].