Effects of coupling lens on optical refrigeration of semiconductors

被引：0
|
作者：
Ding Kai [1 ]
Zeng Yi-Ping [1 ]
机构：
[1] Chinese Acad Sci, Inst Semicond, Novel Mat Ctr, Beijing 100083, Peoples R China
来源：
CHINESE PHYSICS LETTERS | 2008年 / 25卷 / 05期
关键词：
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Optical refrigeration of semiconductors is encountering efficiency difficulties caused by nonradiative recombination and luminescence trapping. A commonly used approach for enhancing luminescence efficiency of a semiconductor device is coupling a lens with the device. We quantitatively study the effects of a coupling lens on optical refrigeration based on rate equations and photon recycling, and calculated cooling efficiencies of different coupling mechanisms and of different lens materials. A GaAs/GaInP heterostructure coupled with a homo-epitaxial GaInP hemispherical lens is recommended.
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页码：1878 / 1880
页数：3
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