Collective modes of quantum dot ensembles in microcavities

Abstract

Emission spectra of quantum dot arrays in zero-dimensional microcavities are studied theoretically, and it is shown that they are determined by the competition between the formation of the collective superradiant mode and inhomogeneous broadening. The random sources method for the calculation of photoluminescence spectra under a non-resonant pumping is developed, and a microscopic justification of the random sources method within a framework of the standard diagram technique is given. The emission spectra of a microcavity are analyzed with allowance for the spread of exciton states energies caused by an inhomogeneous distribution of quantum dots and a tunneling between them. It is demonstrated that in the case of a strong tunneling coupling the luminescence spectra are sensitive to the geometric positions of the dots, and the collective mode can, under certain conditions, be stabilized by the random tunnel junctions.

8 pages, 5 figures

References in corpus (8)

• Quantum nature of a strongly-coupled single quantum dot-cavity system
• Exciton photon strong-coupling regime for a single quantum dot in a microcavity
• Nonlinear spectroscopy of photons bound to one atom
• Strong-coupling of quantum dots in microcavities
• Exciton lifetime in InAs/GaAs quantum dot molecules
• Statistics of excitons in quantum dots and the resulting microcavity emission spectra
• Direct observation of acoustic phonon mediated relaxation between coupled exciton states in a single quantum dot molecule
• Light-matter interaction in doped microcavities

Cited by in corpus (20)

• Optical properties of charged excitons in two-dimensional semiconductors
• Cavity versus dot emission in strongly coupled quantum dots-cavity systems
• Non-linear emission spectra of quantum dots strongly coupled to photonic mode
• Spontaneous, collective coherence in driven, dissipative cavity arrays
• Enhanced spontaneous emission from inhomogeneous ensembles of quantum dots is induced by short-range couplings
• Biexciton-mediated superradiant photon blockade
• Collective Förster energy transfer modified by the planar metallic mirror
• Theory of optical spin control in quantum dot microcavities
• Vacuum-induced coherence in quantum dot systems
• Superradiance and enhanced luminescence from ensembles of a few self-assembled quantum dots
• Fine structure of two-electron states in single and double quantum dots
• Up-converted photoluminescence induced by radiative coupling between excitons
• Collective effects in emission of quantum dots strongly coupled to a microcavity photon
• Tunable bandwidth and nonlinearities in an atom-photon interface with subradiant states
• Interlayer exciton polaritons in homobilayers of transition metal dichalcogenides
• Non-Markovian effects for hybrid plasmonic systems in the strong coupling regime
• Quantum Borrmann effect for dissipation-immune photon-photon correlations
• Dramatic impact of pumping mechanism on photon entanglement in microcavity
• Disorder-Induced Spectral Splitting versus Rabi Splitting under Strong Light-Matter Coupling
• Phase dependence of the unnormalized second-order photon correlation function