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Conferences > IQEC > 1992 > PTu > PTu103
  • XVIII International Quantum Electronics Conference
  • Technical Digest Series (Optica Publishing Group, 1992),
  • paper PTu103

Room Temperature Dephasing of Excitons and Free Carriers in GaAs/AlGaAs Quantum Wells

K. Leo and K. Köhler

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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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