Spatial regulation of thermal emission based on polar material

Han Wang; Huanzheng Zhu; Hao Luo; Qiang Li

doi:10.1117/12.2534021

17 May 2019 Spatial regulation of thermal emission based on polar material

Han Wang, Huanzheng Zhu, Hao Luo, Qiang Li

Proceedings Volume 11170, 14th National Conference on Laser Technology and Optoelectronics (LTO 2019); 111703X (2019) https://doi.org/10.1117/12.2534021
Event: Fourteenth National Conference on Laser Technology and Optoelectronics, 2019, Shanghai, China

Abstract

The ability to regulate the emission angle of thermal source is crucial for improving the efficiency of many energy conversion systems. Here, we design a structure of Ge/Al₂O₃/Au which can realize the spatial regulation of thermal emission. It has been shown that nearly perfect absorption could be attained and the range of emission angle could be tuned without structural patterning. By utilizing Berreman mode and intrinsic loss of Al₂O₃, we could attain the expansion of the range of emission angle.

Citation Download Citation

Han Wang, Huanzheng Zhu, Hao Luo, and Qiang Li "Spatial regulation of thermal emission based on polar material", Proc. SPIE 11170, 14th National Conference on Laser Technology and Optoelectronics (LTO 2019), 111703X (17 May 2019); https://doi.org/10.1117/12.2534021

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