T. Boulier, M. Bamba, A. Amo, C. Adrados, A. Lemaitre, E. Galopin, I. Sagnes, J. Bloch, C. Ciuti, E. Giacobino, and A. Bramati Polariton-generated intensity squeezing in semiconductor micropillars Nature Communications 5, 3260 (7 pages) (2014) Post-print