Fabrication and Optical Properties of a Fully Hybrid Epitaxial ZnO-Based   Microcavity in the Strong Coupling Regime
  In order to achieve polariton lasing at room temperature, a new fabrication methodology for planar microcavities is proposed: a ZnO-based microcavity in which the active region is epitaxially grown on an AlGaN/AlN/Si substrate and in which two dielectric mirrors are used. This approach allows as to simultaneously obtain a high-quality active layer together with a high photonic confinement as demonstrated through macro-, and micro-photoluminescence ({\mu}-PL) and reflectivity experiments. A quality factor of 675 and a maximum PL emission at k=0 are evidenced thanks to {\mu}-PL, revealing an efficient polaritonic relaxation even at low excitation power. 
L. Orosz, F. R\'everet, S. Bouchoule, J. Z\'u\~niga-P\'erez, F.   M\'edard, J. Leymarie, P. Disseix, M. Mihailovic, E. Frays...
cond-mat.mtrl-sci physics.optics