Elastic scattering dynamics of cavity polaritons: Evidence for time-energy uncertainty and polariton localization

Publication: Research - peer-reviewJournal article – Annual report year: 2002

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The directional dynamics of the resonant Rayleigh scattering from a semiconductor microcavity is investigated. When optically exciting the lower polariton branch, the strong dispersion results in a directional emission on a ring. The coherent emission ring shows a reduction of its angular width for increasing time after excitation, giving direct evidence for the time-energy uncertainty in the dynamics of the scattering by disorder. The ring width converges with time to a finite value, a direct measure of an intrinsic momentum broadening of the polariton states localized by multiple disorder scattering.
Original languageEnglish
JournalPhysical Review Letters
Publication date2002
Volume88
Issue4
Pages047401
ISSN0031-9007
DOIs
StatePublished

Bibliographical note

Copyright (2002) American Physical Society

CitationsWeb of Science® Times Cited: 48

Keywords

  • DISORDERED-SYSTEMS, SEMICONDUCTOR MICROCAVITY, QUANTUM-WELL STRUCTURES, RESONANT RAYLEIGH-SCATTERING, COHERENCE, EXCITONS
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