Topological spin textures of exciton-polaritons manipulating by spin-orbit coupling

Abstract

The topological spin textures of exciton-polariton in microcavities are governed by the interplay of the spin-orbit coupling and longitudinal-transverse splitting. We demonstrate the generation of exciton-polariton spin vortices by a linearly polarized optical pump and analyze the arising exciton-polariton topological spin textures in microcavities. By manipulating the spin-orbit coupling and polarization states, one can control the density, phase, and polarization distributions of exciton-polaritons. Moreover, we obtain a vortex of the pure phase winding number and spin-vortices characterized by quantized polarization winding, which holds a potential application for spinoptronic devices and quantum information.