Negative refractive index in optics of metal-dielectric composites

被引：142

作者：

Kildishev, AV ^{[1
]}

Cai, WS ^{[1
]}

Chettiar, UK ^{[1
]}

Yuan, HK ^{[1
]}

Sarychev, AK ^{[1
]}

Drachev, VP ^{[1
]}

Shalaev, VM ^{[1
]}

机构：

[1] Purdue Univ, Sch Elect & Comp Engn, W Lafayette, IN 47907 USA

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2006年 / 23卷 / 03期

关键词：

D O I：

10.1364/JOSAB.23.000423

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Specially designed metal-dielectric composites can have a negative refractive index in the optical range. Specifically, it is shown that arrays of single and paired nanorods can provide such negative refraction. For pairs of metal rods, a negative refractive index has been observed at 1.5 mu m. The inverted structure of paired voids in metal films can also exhibit a negative refractive index. A similar effect can be accomplished with metal strips in which the refractive index can reach -2. The refractive index retrieval procedure and the critical role of light phases in determining the refractive index are discussed. (c) 2006 Optical Society of America.

引用

页码：423 / 433

页数：11

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