Auteur(s): Orosz Laurent, Réveret François, Médard François, Disseix Pierre, Leymarie Joël, Mihailovic Martine, Solnyshkov Dimitri, Malpuech Guillaume, Zúñiga-Pérez Jesús, Semond Fabrice, Leroux Mathieu, Bouchoule Sophie, Lafosse Xavier, Mexis M., Brimont C., Guillet T.
(Article) Publié:
-Physical Review B Condensed Matter And Materials Physics (1998-2015), vol. 85 p.121201 (2012)
Texte intégral en Openaccess : 
Ref HAL: hal-00710694_v1
DOI: 10.1103/PhysRevB.85.121201
WoS: 000301337000001
Exporter : BibTex | endNote
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Résumé:
Polariton relaxation mechanisms are analyzed experimentally and theoretically in a ZnO-based polariton laser. A minimum lasing threshold is obtained when the energy difference between the exciton reservoir and the bottom of the lower polariton branch is resonant with the LO phonon energy. Tuning off this resonance increases the threshold, and exciton-exciton scattering processes become involved in the polariton relaxation. These observations are qualitatively reproduced by simulations based on the numerical solution of the semiclassical Boltzmann equations.