Abstract
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 optical pump with a spatial distribution of intensity that breaks the chiral symmetry of the system.
- Received 30 June 2014
DOI:https://doi.org/10.1103/PhysRevLett.113.200404
© 2014 American Physical Society
Synopsis
Spinning a Condensate with Light
Published 12 November 2014
A spiral pattern of light imparts angular momentum to a quantum condensate in a semiconductor.
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