Nonlinear phenomena, such as vortices and solitons, in microcavity exciton-polaritons represent intriguing behaviors that hold promise for applications in all-optical circuits, information processing, and quantum computing. We have reviewed the formation and control dynamics of polariton vortices and solitons, with a focus on spinor polaritons in which vortices with a half-integer topological charge can arise. This review has been recently published in Nature Reviews Physics.
