Guillet, T.Mexis, M.Levrat, J.Rossbach, G.Brimont, C.Bretagnon, T.Gil, B.Butte, R.Grandjean, N.Orosz, L.Reveret, F.Leymarie, J.Zuniga-Perez, J.Leroux, M.Semond, F.Bouchoule, S.2011-12-162011-12-162011-12-16201110.1063/1.3650268https://infoscience.epfl.ch/handle/20.500.14299/73322WOS:000296517600004We demonstrate polariton lasing in a bulk ZnO planar microcavity under non-resonant optical pumping at a small negative detuning (delta similar to -1/6 the 130 meV vacuum Rabi splitting) and a temperature of 120 K. The strong coupling regime is maintained at lasing threshold since the coherent nonlinear emission from the lower polariton branch occurs at zero in-plane wavevector well below the uncoupled cavity mode. The contribution of multiple localized polariton modes above threshold and the non-thermal polariton statistics show that the system is in a far-from-equilibrium regime, likely related to the moderate photon lifetime and in-plane photonic disorder in the cavity. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3650268]II-VI semiconductorslight coherencelocalised modesmicrocavitiesmicrocavity lasersnonlinear opticsoptical pumpingpolaritonssemiconductor lasersstimulated emissionwide band gap semiconductorszinc compoundsBose-Einstein Condensationtext::journal::journal article::research article