%0 Journal Article %T LO-phonon-assisted polariton lasing in a ZnO-based microcavity %+ Laboratoire des sciences et matériaux pour l'électronique et d'automatique (LASMEA) %+ Centre de recherche sur l'hétéroepitaxie et ses applications (CRHEA) %+ Laboratoire de photonique et de nanostructures (LPN) %+ Laboratoire Charles Coulomb (L2C) %A Orosz, Laurent %A Réveret, François %A Médard, François %A Disseix, Pierre %A Leymarie, Joël %A Mihailovic, Martine %A Solnyshkov, Dimitri %A Malpuech, Guillaume %A Zúñiga-Pérez, Jesús %A Semond, Fabrice %A Leroux, Mathieu %A Bouchoule, Sophie %A Lafosse, Xavier %A Mexis, Meletios %A Brimont, Christelle %A Guillet, Thierry %< avec comité de lecture %Z PEPS %@ 1098-0121 %J Physical Review B: Condensed Matter and Materials Physics (1998-2015) %I American Physical Society %V 85 %P 121201 %8 2012-03-12 %D 2012 %R 10.1103/PhysRevB.85.121201 %Z Physics [physics]/Condensed Matter [cond-mat]/Other [cond-mat.other]Journal articles %X 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. %G English %2 https://hal.science/hal-00710694/document %2 https://hal.science/hal-00710694/file/1112.0043.pdf %L hal-00710694 %U https://hal.science/hal-00710694 %~ UNICE %~ PRES_CLERMONT %~ CNRS %~ UNIV-BPCLERMONT %~ OPENAIRE %~ L2C %~ ACL-SF %~ MIPS %~ UNIV-MONTPELLIER %~ UNIV-COTEDAZUR %~ ANR %~ CRHEA %~ UM-2015-2021