Nonlinear Optical Spin Hall Effect and Long-Range Spin Transport in Polariton Lasers

E. Kammann, T. C. H. Liew, H. Ohadi, P. Cilibrizzi, P. Tsotsis, Z. Hatzopoulos, P. G. Savvidis, A. V. Kavokin, P. G. Lagoudakis

Research output: Contribution to journalArticlepeer-review

93 Citations (Scopus)

Abstract

We report on the experimental observation of the nonlinear analogue of the optical spin Hall effect under highly nonresonant circularly polarized excitation of an exciton-polariton condensate in a GaAs/AlGaAs microcavity. The circularly polarized polariton condensates propagate over macroscopic distances, while the collective condensate spins coherently precess around an effective magnetic field in the sample plane performing up to four complete revolutions.
Original languageEnglish
Pages (from-to)36404
JournalPhysical Review Letters
Volume109
Issue number3
DOIs
Publication statusPublished - 1 Jul 2012

Keywords

  • Polaritons
  • Spin polarized transport in semiconductors
  • Optical creation of spin polarized carriers

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