Taming the Blackbody with Infrared Metamaterials as Selective Thermal Emitters

被引：1317

作者：

Liu, Xianliang ^{[1
]}

Tyler, Talmage ^{[2
]}

Starr, Tatiana ^{[3
]}

Starr, Anthony F. ^{[3
]}

Jokerst, Nan Marie ^{[2
]}

Padilla, Willie J. ^{[1
]}

机构：

[1] Boston Coll, Dept Phys, 140 Commonwealth Ave, Chestnut Hill, MA 02467 USA

[2] Duke Univ, Dept Elect & Comp Engn, Durham, NC 27708 USA

[3] SensorMetrix Inc, San Diego, CA 92121 USA

来源：

PHYSICAL REVIEW LETTERS | 2011年 / 107卷 / 04期

关键词：

TERAHERTZ; COEFFICIENT; EXPANSION;

D O I：

10.1103/PhysRevLett.107.045901

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In this Letter we demonstrate, for the first time, selective thermal emitters based on metamaterial perfect absorbers. We experimentally realize a narrow band midinfrared (MIR) thermal emitter. Multiple metamaterial sublattices further permit construction of a dual-band MIR emitter. By performing both emissivity and absorptivity measurements, we find that emissivity and absorptivity agree very well as predicted by Kirchhoff's law of thermal radiation. Our results directly demonstrate the great flexibility of metamaterials for tailoring blackbody emission.

引用

页数：4

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