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Creation of Orbital Angular Momentum States with Chiral Polaritonic Lenses

Robert Dall, Michael D. Fraser, Anton S. Desyatnikov, Guangyao Li, Sebastian Brodbeck, Martin Kamp, Christian Schneider, Sven Höfling, and Elena A. Ostrovskaya
Phys. Rev. Lett. 113, 200404 – Published 12 November 2014
Physics logo See Synopsis: Spinning a Condensate with Light
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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.

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  • Received 30 June 2014

DOI:https://doi.org/10.1103/PhysRevLett.113.200404

© 2014 American Physical Society

Synopsis

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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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Authors & Affiliations

Robert Dall1,2, Michael D. Fraser3, Anton S. Desyatnikov1, Guangyao Li1, Sebastian Brodbeck4, Martin Kamp4, Christian Schneider4, Sven Höfling4,5, and Elena A. Ostrovskaya1

  • 1Nonlinear Physics Centre, The Australian National University, Canberra ACT 0200, Australia
  • 2AMPL, Research School of Physics and Engineering, The Australian National University, Canberra ACT 0200, Australia
  • 3Quantum Functional System Research Group, RIKEN Center for Emergent Matter Science, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
  • 4Technische Physik and Wilhelm-Conrad-Röntgen Research Center for Complex Material Systems, Universität Würzburg, D-97074 Würzburg, Germany
  • 5School of Physics and Astronomy, University of St Andrews, St Andrews, Fife, KY16 9SS, United Kingdom

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Issue

Vol. 113, Iss. 20 — 14 November 2014

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