Analog of superradiant emission in thermal emitters

Ming Zhou, Soongyu Yi, Ting Shan Luk, Qiaoqiang Gan, Shanhui Fan, and Zongfu Yu
Phys. Rev. B 92, 024302 – Published 13 July 2015
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Abstract

When wave effects of thermal photons become significant, thermal emitters can exhibit intriguing coherent effects. Here, we show that the superradiant emission, which was originally found in quantum emitters, can be realized in resonant thermal emitters. Similar to the superradiance in quantum emitters, the in-phase oscillation of resonant emitters reduces the lifetime of thermal photons in the emitters. Unlike the atomic superradiance, one remarkable consequence of the thermal superradiance is the anomalous power scaling, where the emission power can scale inversely with the number of thermal emitters. More thermal emitters generate less power due to the coherent interference of thermal photons.

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  • Received 29 June 2014
  • Revised 7 May 2015

DOI:https://doi.org/10.1103/PhysRevB.92.024302

©2015 American Physical Society

Authors & Affiliations

Ming Zhou1, Soongyu Yi1, Ting Shan Luk2, Qiaoqiang Gan3, Shanhui Fan4, and Zongfu Yu1

  • 1Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Wisconsin 53706, USA
  • 2Sandia National Laboratories, Albuquerque, New Mexico 87185, USA
  • 3Department of Electrical Engineering, The State University of New York at Buffalo, Buffalo, New York 14260 USA
  • 4Department of Electrical Engineering and Ginzton Lab, Stanford University, Stanford, California 94305 USA

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Issue

Vol. 92, Iss. 2 — 1 July 2015

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