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Coulomb Correlations and Biexciton Signatures in Coherent Excitation Spectroscopy of Semiconductor Quantum Wells
Author(s) -
Finger E.,
Kraft S.,
Hofmann M.,
Meier T.,
Koch S.W.,
Stolz W.,
Rühle W.W.,
Wieck A.
Publication year - 2002
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 - 10.1002/1521-3951(200211)234:1<424::aid-pssb424>3.0.co;2-v
Subject(s) - biexciton , exciton , spectroscopy , excitation , physics , coulomb , atomic physics , semiconductor , coherent spectroscopy , condensed matter physics , molecular physics , quantum mechanics , raman scattering , raman spectroscopy , coherent anti stokes raman spectroscopy , electron
The influence of coupling, correlation, and disorder on exciton and biexciton signatures is investigated using coherent excitation spectroscopy. Different biexciton‐induced transitions of a single biexciton state are spectrally resolved. One of the transitions is found to be particularly sensitive to disorder. Mixed biexciton resonances, resulting from attractively interacting heavy and light hole exciton states, are identified. The observations are analyzed on the basis of microscopic model calculations.