Superfluorescence spectra of excitons in quantum wells
P. Gr\"unwald, G. K. G. Burau, H. Stolz, and W. Vogel
TL;DR
This paper models exciton fluorescence in GaAs quantum wells using quantum optics and many-body physics, successfully explaining experimental spectra and revealing superfluorescent emission.
Contribution
It introduces a combined quantum optical and many-particle approach to analyze exciton spectra, demonstrating superfluorescence in quantum wells.
Findings
Excellent agreement with experimental spectra
Evidence of superfluorescent emission
Method clarifies spectral features
Abstract
We study the fluorescence light emitted from GaAs excitons in semiconductor quantum wells. The excitons are modeled as interacting bosons. By combining quantum optical methods for the excitonic emission spectrum with many particle descriptions of the transmission through the medium, we can evaluate the spectra outside the well. Comparing with experimental spectra, we get a very good agreement. The method helps explaining the main features of the observed spectra. It is demonstrated that the observed spectra show clear evidence of superfluorescent emission.
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