Near-complete violation of Kirchhoff's law of thermal radiation with a 0.3 T magnetic field

被引：119

作者：

Zhao, Bo ^{[1
,3
]}

Shi, Yu ^{[1
]}

Wang, Jiahui ^{[2
]}

Zha, Zhexin ^{[1
]}

Zhao, Nathan ^{[2
]}

Fan, Shanhui ^{[1
,3
]}

机构：

[1] Stanford Univ, Dept Elect Engn, Stanford, CA 94305 USA

[2] Stanford Univ, Dept Appl Phys, Stanford, CA 94305 USA

[3] Stanford Univ, Ginzton Lab, Stanford, CA 94305 USA

来源：

OPTICS LETTERS | 2019年 / 44卷 / 17期

关键词：

EMISSION;

D O I：

10.1364/OL.44.004203

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The capability to overcome Kirchhoff's law of thermal radiation provides new opportunities in energy harvesting and thermal radiation control. Previously, design towards demonstrating such capability requires a magnetic field of 3 T, which is difficult to achieve in practice. In this work, we propose a nanophotonic design that can achieve such capability with a far more modest magnetic field of 0.3 Tesla, a level that can be achieved with permanent magnets. Our design uses guided resonance in low-loss dielectric gratings sitting on a magneto-optical material, which provides significant enhancement on the sensitivity to the external magnetic field. (C) 2019 Optical Society of America

引用

页码：4203 / 4206

页数：4

共 33 条

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