First-order coherence of light emission from inhomogeneously broadened mesoscopic ensembles

A. Delteil, V. Blondot, S. Buil, and J.-P. Hermier
Phys. Rev. B 106, 115302 – Published 2 September 2022

Abstract

Inhomogeneous broadening is well known to hinder individual characteristics of emitters, supplanting the single-particle properties by their broader probability distribution. Here, we present an analysis of the emission spectra of mesoscopic ensembles of inhomogeneously distributed emitters below the thermodynamic limit (101104 emitters). Based on a simple analytical model and an extensive numerical analysis, we show that the number and individual linewidths of the emitters can be directly estimated from the ensemble autocorrelation function in spite of an inhomogeneously broadened emission. As an application, we analyze the photoluminescence of colloidal nanocrystal aggregates embedded in a gold shell. Our general method can be applied to a wide range of mesoscopic many-body systems and could provide new insights into their first-order coherence properties.

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  • Received 8 July 2022
  • Revised 22 August 2022
  • Accepted 23 August 2022

DOI:https://doi.org/10.1103/PhysRevB.106.115302

©2022 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied PhysicsAtomic, Molecular & Optical

Authors & Affiliations

A. Delteil*, V. Blondot, S. Buil, and J.-P. Hermier

  • Université Paris-Saclay, UVSQ, CNRS, GEMaC, 78000, Versailles, France

  • *aymeric.delteil@uvsq.fr

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Vol. 106, Iss. 11 — 15 September 2022

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