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  • Letter
  • Open Access

Spatial coherence of light emitted by thermalized ensembles of emitters coupled to surface waves

Elise Bailly, Jean-Paul Hugonin, Benjamin Vest, and Jean-Jacques Greffet*

  • Université Paris-Saclay, Institut d'Optique Graduate School, CNRS, Laboratoire Charles Fabry, 91127 Palaiseau, France

  • *Corresponding author: jean-jacques.greffet@institutoptique.fr
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Phys. Rev. Research 3, L032040 – Published 13 August, 2021

DOI: https://doi.org/10.1103/PhysRevResearch.3.L032040

Abstract

It has been discovered experimentally that light emitted by layers of photoexcited dye molecules or quantum dots deposited on metallic thin films is spatially coherent. Identifying the physical origin of this spatial coherence is a difficult task in the absence of a systematic procedure to model theoretically the field correlation function of the photoluminescence. The presence of strong coupling and the presence of delocalized plasmonic modes have been considered as possible candidates to explain the origin of the spatial coherence. Here, we use a general coherence-absorption relation recently derived to address this question.

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References (41)

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Phys. Rev. Research 3, L032040– Published 13 August, 2021
  • Received 9 August 2020
  • Revised 5 July 2021
  • Accepted 8 July 2021
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