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

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 th...

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Bibliographic Details
Published in:Physical review. B 2022-09, Vol.106 (11), Article 115302
Main Authors: Delteil, A., Blondot, V., Buil, S., Hermier, J.-P.
Format: Article
Language:English
Subjects:
Condensed Matter
Optics
Other
Physics
Quantum Physics
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Summary: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 (10 1-10 4 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.
ISSN:2469-9950
2469-9969
DOI:10.1103/PhysRevB.106.115302