Precision Measurements of Temperature-Dependent and Nonequilibrium Thermal Emitters

被引:27
|
作者
Xiao, Yuzhe [1 ]
Wan, Chenghao [1 ,2 ]
Shahsafi, Alireza [1 ]
Salman, Jad [1 ]
Yu, Zhaoning [1 ,3 ]
Wambold, Raymond [1 ]
Mei, Hongyan [1 ]
Perez, Bryan E. Rubio [1 ]
Derdeyn, William [4 ]
Yao, Chunhui [1 ]
Kats, Mikhail A. [1 ,2 ,3 ]
机构
[1] Univ Wisconsin Madison, Dept Elect & Comp Engn, Madison, WI 53706 USA
[2] Univ Wisconsin Madison, Dept Mat Sci & Engn, Madison, WI 53706 USA
[3] Univ Wisconsin Madison, Dept Phys, Madison, WI 53706 USA
[4] Univ Wisconsin Madison, Dept Engn Phys, Madison, WI 53706 USA
基金
美国国家科学基金会;
关键词
FTIR; infrared spectroscopy; thermal-emission measurement; RADIOMETRIC CALIBRATION; EMISSION-SPECTROSCOPY; BROAD-BAND; CONVERSION; ABSORBER; SURFACES;
D O I
10.1002/lpor.201900443
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Thermal emission is the radiation of electromagnetic waves from hot objects. The promise of thermal-emission engineering for applications in energy harvesting, radiative cooling, and thermal camouflage has recently led to renewed research interest in this topic. However, accurate and precise measurements of thermal emission in a laboratory setting can be challenging in part due to the presence of background emission from the surrounding environment and the measurement instrument itself. This problem is especially acute for thermal emitters that have unconventional temperature dependence, operate at low temperatures, or are out of equilibrium. In this paper, general procedures are described, recommended, and demonstrated for thermal-emission measurements that can accommodate such unconventional thermal emitters.
引用
收藏
页数:17
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