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American Institute of Physics, Applied Physics Letters, 8(92), p. 081910

DOI: 10.1063/1.2885018

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Nonlinear relaxation of zero-dimension-trapped microcavity polaritons

Journal article published in 2008 by Ounsi El Daïf, Ounsi El Daif, Gaël Nardin, Taofiq K. Paraïso, Augustin Baas, Maxime Richard, Jean-Philippe Brantut, Thierry Guillet ORCID, François Morier-Genoud, Benoît Deveaud-Plédran
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This paper is available in a repository.

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Abstract

We study the emission properties of confined polariton states in shallow zero-dimensional traps under non resonant excitation. We evidence several relaxation regimes. For slightly negative photon-exciton detuning, we observe a nonlinear increase of the emission intensity, characteristic of carrier-carrier scattering assisted relaxation under strong-coupling regime. This demonstrates the efficient relaxation toward a confined state of the system. For slightly positive detuning, we observe the transition from strong to weak coupling regime and then to single-mode lasing.