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The relaxation of hot photoexcited electrons and the ultrashort laser pulse transmission under nonequilibrium LO phonon conditions in GaAs are studied by the Monte Carlo technique. It is shown that the electron relaxation from photoexcited levels consists of two stages. The first stage is controlled by the nonequilibrium phonons, and the second one – by intervalley processes. The laser pulse transmission is governed by the first stage.
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Mickevičius et al. (1988) studied this question.
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