Large Quality Factor in Sheet Metamaterials Made from Dark Dielectric Meta-atoms

被引：32

作者：

Jain, Aditya ^{[1
,2
]}

Tassin, Philippe ^{[1
,2
]}

Koschny, Thomas ^{[1
,2
]}

Soukoulis, Costas M. ^{[1
,2
,3
]}

机构：

[1] US DOE, Ames Lab, Ames, IA 50011 USA

[2] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA

[3] FORTH, IESL, Iraklion 71110, Crete, Greece

来源：

PHYSICAL REVIEW LETTERS | 2014年 / 112卷 / 11期

关键词：

NEGATIVE PERMITTIVITY;

D O I：

10.1103/PhysRevLett.112.117403

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Metamaterials-or artificial electromagnetic materials-can create media with properties unattainable in nature, but mitigating dissipation is a key challenge for their further development. Here, we demonstrate a low-loss metamaterial by exploiting dark bound states in dielectric inclusions coupled to the external waves by small nonresonant metallic antennas. We experimentally demonstrate a dispersion-engineered metamaterial based on a meta-atom made from alumina, and we show that its resonance has a much larger quality factor than metal-based meta-atoms. Finally, we show that our dielectric meta-atom can be used to create sheet metamaterials with negative permittivity or permeability.

引用

页数：5

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