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Pis'ma v Zh. Èksper. Teoret. Fiz., 2009, Volume 89, Issue 1, Pages 38–43 (Mi jetpl333)  

CONDENSED MATTER

Effect of the incoherent scattering of polaritons on the dynamics of stimulated polariton-polariton scattering in GaAs microcavities

A. A. Demenev, A. A. Shchekin, A. V. Larionov, V. D. Kulakovskii

Institute of Solid State Physics, Russian Academy of Sciences

Abstract: It has been found that interband illumination strongly affects the dynamics of parametric polariton scattering in planar GaAs microcavities under resonant photoexcitation above the inflection point of the polariton dispersion curve: illumination with a power density of about 0.1% of the resonance value reduces the threshold density for the appearance of stimulated scattering by more than 15%. It has been shown that the effect is attributed to a change in the resonance energy of the pumped mode due to an increase in the density of long-lived exciton-like polaritons formed owing to the scattering of resonantly-excited polaritons on photoexcited free carriers.

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English version:
Journal of Experimental and Theoretical Physics Letters, 2009, 89:1, 35–40

Bibliographic databases:

PACS: 73.21.La, 75.50.Pp, 78.47.+p
Received: 24.11.2008

Citation: A. A. Demenev, A. A. Shchekin, A. V. Larionov, V. D. Kulakovskii, “Effect of the incoherent scattering of polaritons on the dynamics of stimulated polariton-polariton scattering in GaAs microcavities”, Pis'ma v Zh. Èksper. Teoret. Fiz., 89:1 (2009), 38–43; JETP Letters, 89:1 (2009), 35–40

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