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

Wolfgang Werner Langbein, Jørn Märcher Hvam

    Research output: Contribution to journalJournal articleResearchpeer-review

    304 Downloads (Pure)

    Abstract

    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
    Volume88
    Issue number4
    Pages (from-to)047401
    ISSN0031-9007
    DOIs
    Publication statusPublished - 2002

    Bibliographical note

    Copyright (2002) American Physical Society

    Keywords

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

    Fingerprint

    Dive into the research topics of 'Elastic scattering dynamics of cavity polaritons: Evidence for time-energy uncertainty and polariton localization'. Together they form a unique fingerprint.

    Cite this