The influence of biexciton formation on the four-wave-mixing response of multiple quantum wells having a strong inhomogeneous broadening of the exciton transitions has been investigated. The experimental results are consistent with a model which distinguishes between crystal regions where the exciton energy is almost constant over the spatial extension of the biexciton state, and regions where the fluctuations of the exciton energy are comparable to or larger than the biexciton binding energy.
Title
Site-selective four-wave-mixing experiments in GaAs/(GaAl)As multiple quantum wells
Published in
Nuovo Cimento Della Societa Italiana Di Fisica D-Condensed Matter Atomic Molecular and Chemical Physics Fluids Plasmas Biophysics
Volume
17
Issue
11-12
Pages
1377-1382
Date
1995
ISSN
0392-6737
Note
Ecole polytech fed lausanne,phb ecublens,inst phys appl,ch-1015 lausanne,switzerland. Bongiovanni, G, UNIV CAGLIARI,DIPARTIMENTO SCI FIS,VIA OSPED 72,I-09124 CAGLIARI,ITALY.
ISI Document Delivery No.: UB294
Cited Reference Count: 9
Cited References:
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MAYER EJ, 1995, PHYS REV B, V51, P10909
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ZIMMERMANN R, 1992, PHYS STATUS SOLIDI B, V173, P129
Record creation date
2007-08-31
