Quantum beats of excitons in quantum wells

E. O. Göbel, K. Leo, T. C. Damen, J. Shah, S. Schmitt-Rink, W. Schäfer, J. F. Müller, and K. Köhler
Phys. Rev. Lett. 64, 1801 – Published 9 April 1990
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Abstract

We report the observation of quantum beats in the decay of the coherent polarization of intrinsic excitations in GaAs/GaAlAs quantum wells. The beating arises from interference of excitons with slightly different quantum confinement energy due to well width fluctuations.

  • Received 8 December 1989

DOI:https://doi.org/10.1103/PhysRevLett.64.1801

©1990 American Physical Society

Authors & Affiliations

E. O. Göbel, K. Leo, T. C. Damen, and J. Shah

  • AT&T Bell Laboratories, Holmdel, New Jersey 07733

S. Schmitt-Rink and W. Schäfer

  • AT&T Bell Laboratories, Murray Hill, New Jersey 07974

J. F. Müller

  • Serin Physics Laboratory, Rutgers University, Piscataway, New Jersey 08855

K. Köhler

  • Fraunhofer-Institut für Angewandte Festkörperphysik, D-7800 Freiburg, Federal Republic of Germany

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Vol. 64, Iss. 15 — 9 April 1990

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