El Daïf, OunsiBaas, AugustinDeveaud-Plédran, BenoitMorier-Genoud, Francois2007-09-102007-09-102007-09-102006https://infoscience.epfl.ch/handle/20.500.14299/11919Optical parametric oscillator including a semiconductor microcavity being configured to spatially localize polaritons of at least three quantized polariton energy levels to effect an optical parametric oscillation.patentUS7729043US2007177253EP181398136480923