Spin-to-orbital angular momentum conversion in semiconductor microcavities

F. Manni, K. G. Lagoudakis, T. K. Paraïso, R. Cerna, Y. Léger, T. C. H. Liew, I. A. Shelykh, A. V. Kavokin, F. Morier-Genoud, B. Deveaud-Plédran

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

We experimentally demonstrate a technique for the generation of optical beams carrying orbital angular momentum using a planar semiconductor microcavity. Despite being isotropic systems with no structural gyrotropy, semiconductor microcavities, because of the transverse-electric–transverse-magnetic polarization splitting that they feature, allow for the conversion of the circular polarization of an incoming laser beam into the orbital angular momentum of the transmitted light field. The process implies the formation of topological entities, a pair of optical vortices, in the intracavity field.
Original languageEnglish
Article number241307
Number of pages1
JournalPhysical Review B
Volume83
Issue number24
DOIs
Publication statusPublished - 15 Jun 2011

Keywords

  • orbital angular momentum
  • planar semiconductor microcavity
  • optical beams

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