The strong coupling of light and excitons in a two-dimensional semiconductor microcavity
results in a new eigenstate of quasiparticles called polaritons. Microcavity polaritons have …

Recent experiments in microcavity polaritons have shown many effects that can be
associated with the phase transition known as Bose-Einstein condensation; these effects …

Exciton-polaritons are composite quasiparticles that are the result of coupling excitons with
photons. They bring together many of the advantages of both underlying parts: The excitons …

In this thesis, we report experimental evidence of a" gray" condensate of excitons, as
predicted theoretically by M. Combescot et al. Most importantly, the condensate is …

Spatially indirect excitons are optically generated composite bosons with a radiative lifetime
sufficient to reach thermal equilibrium. This work explores the physics of indirect excitons in …