Auteur(s): Guillet T., Brimont C., Valvin P., Gil B., Bretagnon T., Medard F., Mihailovic Martine, Zúñiga-Pérez Jesús, Leroux Mathieu, Semond F., Bouchoule Sophie
(Article) Publié:
Applied Physics Letters, vol. 98 p.3 (2011)
Texte intégral en Openaccess : 
Ref HAL: hal-00554480_v3
Ref Arxiv: 1106.0183
DOI: 10.1063/1.3593032
WoS: 000291041600005
Ref. & Cit.: NASA ADS
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23 Citations
Résumé:
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.