%0 Journal Article %T Laser emission with excitonic gain in a ZnO planar microcavity %+ Laboratoire Charles Coulomb (L2C) %+ 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) %A Guillet, Thierry %A Brimont, Christelle %A Valvin, Pierre %A Gil, Bernard %A Bretagnon, Thierry %A Medard, F. %A Mihailovic, Martine %A Zúñiga-Pérez, Jesús %A Leroux, Mathieu %A Semond, F. %A Bouchoule, Sophie %< avec comité de lecture %@ 0003-6951 %J Applied Physics Letters %I American Institute of Physics %V 98 %N 211105 %P 3 %8 2011-05-23 %D 2011 %Z 1106.0183 %R 10.1063/1.3593032 %K Zinc oxide %K microcavity %K strong coupling %K VCSEL %Z Physics [physics]/Condensed Matter [cond-mat]/Other [cond-mat.other]Journal articles %X The lasing operation of a ZnO planar microcavity under optical pumping is demonstrated from T=80 K to 300 K. At the laser threshold, the cavity switches from the strong coupling to the weak coupling regime. A gain-related transition, which appears while still observing polariton branches and, thus, with stable excitons, is observed below 240K. This shows that exciton scattering processes, typical of II-VI semiconductors, are involved in the gain process. %G English %2 https://hal.science/hal-00554480v3/document %2 https://hal.science/hal-00554480v3/file/Guillet-ZnO_microcavity-arxiv2.pdf %L hal-00554480 %U https://hal.science/hal-00554480 %~ UNICE %~ PRES_CLERMONT %~ CNRS %~ UNIV-BPCLERMONT %~ OPENAIRE %~ L2C %~ ACL-SF %~ MIPS %~ UNIV-MONTPELLIER %~ UNIV-COTEDAZUR %~ ANR %~ CRHEA %~ UM-2015-2021