This article reviews recent theoretical and experimental advances in the fundamental
understanding and active control of quantum fluids of light in nonlinear optical systems. In …

In the past decade, a two-dimensional matter-light system called the microcavity exciton-
polariton has emerged as a new promising candidate of Bose-Einstein condensation (BEC) …

Microcavities are semiconductor, metal, or dielectric structures providing optical confinement
in one, two or three dimensions. At the end of the 20th century, microcavities have attracted …

The formation of half-light half-matter quasiparticles under strong coupling results in
properties unique from those of the constituent components. Fingerprints of both light and …

A remarkable analogy is established between the well-known spin Hall effect and the
polarization dependence of Rayleigh scattering of light in microcavities. This dependence …

By exploiting the polarization multistability of polaritons, we show that polarized signals can
be conducted in the plane of a semiconductor microcavity along controlled channels or …

From a theoretical point of view, we discuss a variety of phenomena linked to the spin and
polarization degree of freedom of exciton-polaritons in semiconductor microcavities. We start …

We observe a spontaneous parity breaking bifurcation to a ferromagnetic state in a spatially
trapped exciton-polariton condensate. At a critical bifurcation density under nonresonant …

We perform Young's double-slit experiment to study the spatial coherence properties of a
two-dimensional dynamic condensate of semiconductor microcavity polaritons. The …

We report on the experimental observation of the nonlinear analogue of the optical spin Hall
effect under highly nonresonant circularly polarized excitation of an exciton-polariton …