Negative refraction and subwavelength focusing using left-handed composite metamaterials

被引：0
|
作者：
Ozbay, Ekmel [1 ]
Aydin, Koray [1 ]
机构：
[1] Bilkent Univ, Dept Phys, Nanotechnol Res Ctr, TR-06800 Ankara, Turkey
来源：
METAMATERIALS III | 2008年 / 6987卷
关键词：
metamaterials; left-handed metamaterial; negative refractive index; superlens;
D O I：
10.1117/12.785560
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We review the recent experimental work done in our group on left-handed metamaterials (LHMs). The metamaterial structure is composed of periodic arrays of split-ring resonators and wire meshes and exhibits a left-handed propagation band at frequencies of negative permittivity and negative permeability. The verification of negative refraction is made by using prism shaped LHM and also by beam-shifting method. We have achieved subwavelength focusing of a point source with a resolution of 0.13 lambda through a flat LHM superlens.
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页数：7
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