Baas, A.Houdré, R.Karr, J. Ph.Khitrova, G.Messin, G.2004-12-032004-12-0320012001http://hdl.handle.net/2003/111110.17877/DE290R-10920enThe American Physical SocietyPhysical Review Letters530Parametric Polariton Amplification in Semiconductor Microcavities10.1103/PhysRevLett.87.127403article (journal)