Dall, Robert; Fraser, Michael D.; Desyatnikov, Anton S; Li, Guangyao (Leo); Brodbeck, Sebastian; Kamp, Martin; Schneider, Christian; Hofling, Sven; Ostrovskaya, Elena
Controlled transfer of orbital angular momentum to an exciton-polariton Bose-Einstein condensate spontaneously created under incoherent, off resonant excitation conditions is a long-standing challenge in the field of microcavity polaritonics. We demonstrate, experimentally and theoretically, a simple and efficient approach to the generation of nontrivial orbital angular momentum states by using optically induced potentials - chiral polaritonic lenses. These lenses are produced by a structured...[Show more]
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