Controlling thermal radiation with a phase-change metasurface

Leena Singh,Erbin Qiu, Andrew E. Cardin, Aiping Chen,Diego A. R. Dalvit,Ivan K. Schuller,Ting S. Luk,Jon A. Schuller,Wilton J. M. Kort-Kamp,Abul K. Azad

Conference on Lasers and Electro-Optics（2022）

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摘要

We demonstrate a VO2 based phase-change metasurface that self regulates its emissivity in response to the ambient temperature. The mid-infrared emissivity increases to near unity when operating above the insulator-to-metal phase transition temperature of VO2.

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关键词

thermal radiation,phase-change metasurface,midinfrared emissivity,insulator-metal phase transition temperature,thin films,RF magnetron sputtering,VO2

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