Journal article
Elastic scattering dynamics of cavity polaritons: Evidence for time-energy uncertainty and polariton localization
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.
Language: | English |
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Year: | 2002 |
Pages: | 047401 |
ISSN: | 10797114 and 00319007 |
Types: | Journal article |
DOI: | 10.1103/PhysRevLett.88.047401 |
ORCIDs: | Hvam, Jørn Märcher |