热的
航程(航空)
光学
宽带
波长
热辐射
热发射
材料科学
辐射冷却
辐射
辐射传输
光电子学
物理
热力学
气象学
复合材料
作者
Xu Jin,Jyotirmoy Mandal,Aaswath P. Raman
出处
期刊:Science
[American Association for the Advancement of Science]
日期:2021-04-22
卷期号:372 (6540): 393-397
被引量:27
标识
DOI:10.1126/science.abc5381
摘要
Broadband thermal beaming Thermal radiation emits over a wide range of wavelengths and over a wide range of angles. Xu et al. constructed a material that allows a range of wavelengths to emit over a much narrower range of angles. This property allowed the authors to beam thermal energy preferentially in one direction. The strategy requires carefully exploiting stacks of epsilon-near-zero films in which the angular range of thermal emission is controlled by the film thickness. This design could be useful in thermal camouflage and passive radiative cooling applications. Science , this issue p. 393
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