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Subpicosecond Dynamics of the Nonequilibrium Electron–Phonon System in GaAs
Author(s) -
Mickevičius R.,
Reklaitis A.
Publication year - 1988
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/pssb.2221500214
Subject(s) - non equilibrium thermodynamics , phonon , relaxation (psychology) , electron , laser , pulse (music) , physics , condensed matter physics , transmission (telecommunications) , monte carlo method , ultrashort pulse , atomic physics , materials science , optics , quantum mechanics , psychology , social psychology , statistics , electrical engineering , mathematics , engineering , detector
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.