Influence of Disorder and Exciton-Exciton Interactions on 4-Wave-Mixing in Quantum-Wells

The interplay of disorder effects and exciton-exciton interactions in the four-wave-mixing process in quantum wells is investigated. Experiments are performed employing femtosecond and picosecond pulses to have either good temporal or good spectral resolution. It is shown that the localisation of excitons is of primary importance in the generation of the nonlinear signal. It is shown which states contribute and how to the FWM process.


Published in:
Physica Status Solidi B-Basic Research, 188, 1, 531-537
Year:
1995
ISSN:
0370-1972
Keywords:
Note:
Ecole polytech fed lausanne,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.: QQ837
Times Cited: 0
Cited Reference Count: 16
Cited References:
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