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Precision Measurements of Temperature‐Dependent and Nonequilibrium Thermal Emitters
Author(s) -
Xiao Yuzhe,
Wan Chenghao,
Shahsafi Alireza,
Salman Jad,
Yu Zhaoning,
Wambold Raymond,
Mei Hongyan,
Perez Bryan E. Rubio,
Derdeyn William,
Yao Chunhui,
Kats Mikhail A.
Publication year - 2020
Publication title -
laser and photonics reviews
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.778
H-Index - 116
eISSN - 1863-8899
pISSN - 1863-8880
DOI - 10.1002/lpor.201900443
Subject(s) - thermal , thermal emission , radiative transfer , thermal radiation , camouflage , radiative cooling , non equilibrium thermodynamics , thermal equilibrium , thermal energy , materials science , nuclear engineering , engineering physics , physics , computational physics , thermodynamics , optics , computer science , engineering , artificial intelligence
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.
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