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1992
Conference Paper
Titel
Ultrafast dephasing in GaAs and GaAs/AlGaAs quantum wells
Alternative
Ultraschneller Phasenverlust in GaAs und GaAs/AlGaAs-Quantentöpfen
Abstract
We study the dephasing of excitions and free carriers in GaAs bulk and quantum well samples. The nonlinear response is dominated by the excitionic transitions, which have a room temperature dephasing time Tsub2 of about 250fs. The dephasing time of free carriers is much shorter than our time resolution (100fs).
Author(s)