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Conferences > QELS > 1995 > QThG > QThG37
  • Quantum Electronics and Laser Science Conference
  • OSA Technical Digest (Optica Publishing Group, 1995),
  • paper QThG37

Hot-phonon effects in femtosecond luminescence spectra of electron–hole plasmas in CdS

P. Haring Bolivar, V. Klimov, and H. Kurz

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Abstract

The carrier intraband relaxation in CdS is studied with subpicosecond time resolution by using luminescence upconversion. The cooling of a highly dense plasma (0.3–1.4 × 1018 cm-3) is significantly slowed down with respect to the calculated energy- loss rates predicted by the dominant1 long- range Fröhlich interaction involving longitudinal optical (LO) phonons. Even under the assumption of strong screening2,3 of the carrier-LO-phonon interaction, the measured relaxation times cannot be reproduced.

© 1995 Optical Society of America

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