We propose a new class of vortex lattices supported by the parametric conversion of polaritons in wide aperture semiconductor microcavities operating in the strong coupling regime and pumped by a coherent beam. We present numerical and analytical results confirming the existence and robustness of the polaritonic vortex lattices in practically relevant settings and discuss their melting scenarios.
Gorbach, A. V., Hartley, R., & Skryabin, D. V. (2010). Vortex lattices in coherently pumped polariton microcavities. Physical Review Letters, 104(21), . https://doi.org/10.1103/PhysRevLett.104.213903