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

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 (10 - 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.

References in corpus (4)

• Explicit Analytical Solution for Random Close Packing in d=2 and d=3
• Strongly inhomogeneous distribution of spectral properties of silicon-vacancy color centers in nanodiamonds
• Measurement of spin coherence using Raman scattering
• Probing the Origins of Inhomogeneous Broadening in Nitrogen-Vacancy Centers with "Doppler-Free" Type Spectroscopy

Cited by in corpus (2)

• Investigating the fast spectral diffusion of a quantum emitter in hBN using resonant excitation and photon correlations
• Fluorescence decay enhancement and FRET inhibition in self-assembled hybrid gold CdSe/CdS/CdZnS colloidal nanocrystals supraparticles