Quantum beats of excitons in quantum wells

Authors observe quantum beats in the decay of coherent polarization of intrinsic excitation in GaAs/GaAlAs quantum wells. The beating arises from interference of excitons with slightly different quantum confinement energy due to well-width fluctuations.

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Bibliographic Details
Published in:Physical review letters 1990-04, Vol.64 (15), p.1801-1804
Main Authors: GOBEL, E. O, LEO, K, DAMEN, T. C, SHAH, J, SCHMITT-RINK, S, SCHÄFER, W, MULLER, J. F, KOHLER, K
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures
Exact sciences and technology
Physics
Surface and interface electron states
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Description
Summary:Authors observe quantum beats in the decay of coherent polarization of intrinsic excitation in GaAs/GaAlAs quantum wells. The beating arises from interference of excitons with slightly different quantum confinement energy due to well-width fluctuations.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.64.1801