Abstract
The initial relaxation step of photo-excited carriers is the loss of phase due to various scattering processes. The phase relaxation in GaAs and GaAs/AlGaAs quantum wells at low temperatures and the phase relaxation of free carriers at room temperature has been studied in detail.[1] The phase relaxation of excitons at room temperature, which is most important for modulator applications employing excitonic nonlinearities, has not been studied yet.
© 1992 IQEC
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