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Coherence dynamics in microcavities and polariton lasers

Laussy, F.P., Malpuech, G., Kavokin, A.V. and Bigenwald, P. (2004) Coherence dynamics in microcavities and polariton lasers Journal of Physics: Condensed Matter, 16, (35), S3665-S3681. (doi:10.1088/0953-8984/16/35/008).

Record type: Article


We study theoretically the second-order coherence g(2)(0) of light emitted by polariton lasers, i.e., devices based on stimulated relaxation and condensation of exciton–polaritons in microcavities. We solve kinetic equations for the polaritons in different approximations and show that (i) the coherence introduced into the polariton condensate by an external source can be conserved by the system over a macroscopically long time, and (ii) if the total number of polaritons is fixed by the excitation conditions, the correlations between the populations of the ground and excited polariton states can also result in the spontaneous buildup of second-order coherence in the polariton condensate. Both results are obtained neglecting polariton–polariton interactions in the condensate.

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Published date: 20 August 2004


Local EPrints ID: 57417
ISSN: 0953-8984
PURE UUID: 5a1fd91f-2b5c-430e-9cf0-bcf92fe60355

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Date deposited: 13 Aug 2008
Last modified: 17 Jul 2017 14:29

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Author: F.P. Laussy
Author: G. Malpuech
Author: A.V. Kavokin
Author: P. Bigenwald

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