Polariton quantum boxes in semiconductor microcavities
  We report on the realization of polariton quantum boxes in a semiconductor microcavity under strong coupling regime. The quantum boxes consist of mesas that confine the cavity photon, etched on top of the spacer of a microcavity. For mesas with sizes of the order of a few micron in width and nm in depth, we observe quantization, caused by the lateral confinement, of the polariton modes in several peaks. We evidence the strong exciton-photon coupling regime through a typical/clear anticrossing curve for each quantized level. Moreover the growth technique is of high quality, which opens the way for the conception of new optoelectronic devices. 
Ounsi El Da\"if, Augustin Baas, Thierry Guillet, Jean-Philippe   Brantut, Reda Idrissi-Kaitouni, Jean-Louis Staehli, Francoi...