Topological Transitions in Metamaterials

被引：746

作者：

Krishnamoorthy, Harish N. S. ^{[1
,2
,3
]}

Jacob, Zubin ^{[4
]}

Narimanov, Evgenii ^{[5
]}

Kretzschmar, Ilona ^{[6
]}

Menon, Vinod M. ^{[1
,2
,3
]}

机构：

[1] CUNY, Queens Coll, Dept Phys, Flushing, NY 11367 USA

[2] Ctr Photon & Multiscale Nanomat, Flushing, NY 11367 USA

[3] CUNY, Grad Ctr, Dept Phys, New York, NY 10016 USA

[4] Univ Alberta, Dept Elect & Comp Engn, Edmonton, AB T6G 2V4, Canada

[5] Purdue Univ, Sch Elect & Comp Engn, Birck Nanotechnol Ctr, W Lafayette, IN 47907 USA

[6] CUNY City Coll, Dept Chem Engn, New York, NY 10031 USA

来源：

SCIENCE | 2012年 / 336卷 / 6078期

基金：

美国国家科学基金会; 加拿大自然科学与工程研究理事会;

关键词：

NEGATIVE REFRACTION; OPTICAL HYPERLENS; EMISSION; METAL;

D O I：

10.1126/science.1219171

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Light-matter interactions can be controlled by manipulating the photonic environment. We uncovered an optical topological transition in strongly anisotropic metamaterials that results in a dramatic increase in the photon density of states-an effect that can be used to engineer this interaction. We describe a transition in the topology of the iso-frequency surface from a closed ellipsoid to an open hyperboloid by use of artificially nanostructured metamaterials. We show that this topological transition manifests itself in increased rates of spontaneous emission of emitters positioned near the metamaterial. Altering the topology of the iso-frequency surface by using metamaterials provides a fundamentally new route to manipulating light-matter interactions.

引用

页码：205 / 209

页数：6

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