Abstract

The influence of electron–electron scattering processes on the time evolution of four-wave mixing signals for ultrashort excitation in the vicinity of the band edge is investigated. The validity of a Markovian approximation is carefully analyzed. The Markovian relaxation of the one-particle distribution is compared with non-Markovian results obtained from the solution of quantum-kinetic equations for two-point functions. In the non-Markovian case relaxation processes are slowed down.

© 1996 Optical Society of America

Quantum kinetics of femtosecond four-wave mixing in semiconductors

L. Bányai, E. Reitsamer, D. B. Tran Thoai, and H. Haug
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Polarization decay in ultrafast collinear nondegenerate four-wave mixing in a semiconductor amplifier

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Time-resolved measurements of the polarization state of four-wave mixing signals from GaAs multiple quantum wells

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