Hybrid optical-thermal devices and materials for light manipulation and radiative cooling
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Chen_Hybrid optical-thermal.pdf
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Author(s)
Boriskina, Svetlana V
Tong, Jonathan K.
Hsu, Wei-Chun
Weinstein, Lee Adragon
Huang, Xiaopeng
Loomis III, Robert James
Xu, Yanfei
Chen, Gang
Date Issued
September 2015
Journal
Proceedings of SPIE--the Society of Photo-Optical Instrumentation Engineers
Publisher
SPIE
Citation
Boriskina, Svetlana V., Jonathan K. Tong, Wei-Chun Hsu, Lee Weinstein, Xiaopeng Huang, James Loomis, Yanfei Xu, and Gang Chen. “Hybrid Optical-Thermal Devices and Materials for Light Manipulation and Radiative Cooling.” Edited by Ganapathi S. Subramania and Stavroula Foteinopoulou. Active Photonic Materials VII (September 1, 2015). © 2015 Society of Photo-Optical Instrumentation Engineers (SPIE)
Version
Final published version
Abstract
We report on optical design and applications of hybrid meso-scale devices and materials that combine optical and thermal management functionalities owing to their tailored resonant interaction with light in visible and infrared frequency bands. We outline a general approach to designing such materials, and discuss two specific applications in detail. One example is a hybrid optical-thermal antenna with sub-wavelength light focusing, which simultaneously enables intensity enhancement at the operating wavelength in the visible and reduction of the operating temperature. The enhancement is achieved via light recycling in the form of whispering-gallery modes trapped in an optical microcavity, while cooling functionality is realized via a combination of reduced optical absorption and radiative cooling. The other example is a fabric that is opaque in the visible range yet highly transparent in the infrared, which allows the human body to efficiently shed energy in the form of thermal emission. Such fabrics can find numerous applications for personal thermal management and for buildings energy efficiency improvement.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1117/12.2189679
