Spectral Collapse in Ensembles of Metamolecules

被引：167

作者：

Fedotov, V. A. ^{[1
]}

Papasimakis, N. ^{[1
]}

Plum, E. ^{[1
]}

Bitzer, A. ^{[2
,3
]}

Walther, M. ^{[2
]}

Kuo, P. ^{[4
]}

Tsai, D. P. ^{[5
]}

Zheludev, N. I. ^{[1
]}

机构：

[1] Univ Southampton, Optoelect Res Ctr, Southampton SO17 1BJ, Hants, England

[2] Univ Freiburg, Dept Mol & Opt Phys, D-79104 Freiburg, Germany

[3] Univ Bern, Inst Appl Phys, CH-3012 Bern, Switzerland

[4] Acad Sinica, Inst Phys, Taipei 11529, Taiwan

[5] Natl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 104卷 / 22期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1103/PhysRevLett.104.223901

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report on the first direct experimental demonstration of a collective phenomenon in metamaterials: spectral line collapse with an increasing number of unit cell resonators (metamolecules). This effect, which is crucial for achieving a lasing spaser, a coherent source of optical radiation fuelled by coherent plasmonic oscillations in metamaterials, is linked to the suppression of radiation losses in periodic arrays. We experimentally demonstrate spectral line collapse at microwave, terahertz and optical frequencies.

引用

页数：4

共 12 条

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