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Coherent Excitation Spectroscopy on Inhomogeneous Exciton Ensembles

Authors :
Rudolf Hey
P. Thomas
A. Euteneuer
W. W. Rühle
E. Finger
Stephan W. Koch
Martin R. Hofmann
K. H. Ploog
Wolfgang Stolz
Torsten Meier
Source :
Physical Review Letters. 83:2073-2076
Publication Year :
1999
Publisher :
American Physical Society (APS), 1999.

Abstract

A new spectroscopic technique is demonstrated on three characteristically different semiconductor quantum-well samples. Coherent excitation spectroscopy reveals coherent coupling and effectively suppresses the signatures of inhomogeneous broadening and incoherent transfer between various excitonic states in quantum wells. Coherently coupled homogeneous subsystems are analyzed in an inhomogeneously broadened excitonic ensemble.

Details

ISSN :
10797114 and 00319007
Volume :
83
Database :
OpenAIRE
Journal :
Physical Review Letters
Accession number :
edsair.doi...........6115397997ea6f6442c9cb5e2fe2550e
Full Text :
https://doi.org/10.1103/physrevlett.83.2073