Nonlinear relaxation of zero-dimension-trapped microcavity polaritons

Ounsi El Daif, Gaël Nardin, Taofiq K. Paraïso, Augustin Baas, Maxime Richard, J. P. Brantut, Thierry Guillet, Francois Morier-Genoud, Benoit Deveaud-Pĺdran

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We study the emission properties of confined polariton states in shallow zero-dimensional traps under nonresonant 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.

Original languageEnglish
Article number081910
JournalApplied Physics Letters
Issue number8
Publication statusPublished - 2008
Externally publishedYes


ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

El Daif, O., Nardin, G., Paraïso, T. K., Baas, A., Richard, M., Brantut, J. P., Guillet, T., Morier-Genoud, F., & Deveaud-Pĺdran, B. (2008). Nonlinear relaxation of zero-dimension-trapped microcavity polaritons. Applied Physics Letters, 92(8), [081910].