Kasprzak, J.Richard, M.Baas, A.Deveaud, B.Andre, R.Poizat, J.-Ph.Dang, Le Si2010-11-302010-11-302010-11-30200810.1103/PhysRevLett.100.067402https://infoscience.epfl.ch/handle/20.500.14299/61599WOS:000253238400071Second-order time correlations of polaritons have been measured across the condensation threshold in a CdTe microcavity. The onset of Bose-Einstein condensation is marked by the disappearance of photon bunching, demonstrating the transition from a thermal-like state to a coherent state. Coherence is, however, degraded with increasing polariton density, most probably as a result of self-interaction within the condensate and scatterings with noncondensed excitons and polaritons. Such behavior clearly differentiates polariton Bose condensation from photon lasing.Exciton PolaritonsCoherenceDynamicsGasestext::journal::journal article::research article