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Conferences > IQEC > 1990 > QTUJ > QTUJ4
  • International Quantum Electronics Conference
  • OSA Technical Digest (Optica Publishing Group, 1990),
  • paper QTUJ4

Stimulated photon echoes and free polarization decay in time-resolved four-wave mixing spectroscopy of HH1 excitons in GaAs/AlGaAs multiple quantum well structures at 5 K

M. D. WEBB, S. T. CUNDIFF, and D. G. STEEL

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Abstract

Excitonic transitions dominate the optical properties of GaAs/AlGaAs multiple quantum wells (MQWs) near the band edge for low excitation densities. The relaxation of the excited state and the optically induced polarization differ for localized and delocalized excitons. This relaxation arises from elastic and inelastic scattering with phonons and potential fluctuations as well as spontaneous emission.

© 1990 Optical Society of America

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