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Homogeneous linewidth of quantum well excitons from resonance fluorescence spectra
Author(s) -
Schwedt D.,
Nacke Ch.,
Stolz H.,
Eshlaghi S.,
Reuter D.,
Wieck A.
Publication year - 2003
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200301888
Subject(s) - laser linewidth , exciton , spectral line , homogeneous , resonance (particle physics) , excitation , molecular physics , scattering , fluorescence , quantum , chemistry , materials science , physics , optics , atomic physics , condensed matter physics , quantum mechanics , laser , statistical physics
We report high resolution measurements of resonance fluorescence spectra of high quality GaAs quantum wells after small bandwidth cw excitation. The resulting spectra can be well described with means of light scattering from a statistically distributed ensemble of three‐level‐systems. Using this model we are able to separate the homogeneous linewidth from the inhomogeneous ensemble response. Thus, we present a simple linear tool for sample characterization. (© 2003 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)