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, and P. G. Lagoudakis
Phys. Rev. Lett. 109, 036404 – Published 18 July 2012
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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.

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  • Received 21 April 2012

DOI:https://doi.org/10.1103/PhysRevLett.109.036404

© 2012 American Physical Society

Authors & Affiliations

E. Kammann1, T. C. H. Liew2, H. Ohadi1, P. Cilibrizzi1, P. Tsotsis3, Z. Hatzopoulos3,4, P. G. Savvidis1,3,5, A. V. Kavokin1,6, and P. G. Lagoudakis1,*

  • 1School of Physics and Astronomy, University of Southampton, Southampton, SO17 1BJ, United Kingdom
  • 2School of Physical and Mathematical Sciences, Nanyang Technological University, 637371, Singapore
  • 3Microelectronics Research Group, IESL-FORTH, P.O. Box 1527, 71110 Heraklion, Crete, Greece
  • 4Department of Physics, University of Crete, 71003 Heraklion, Crete, Greece
  • 5Department of Materials Science and Technology, University of Crete, P.O. Box 2208, 71003 Heraklion, Greece
  • 6Spin Optics Laboratory, St. Petersburg State University, 1, Ulianovskaya, St. Peterbsurg, 198504, Russia

  • *pavlos.lagoudakis@soton.ac.uk

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Issue

Vol. 109, Iss. 3 — 20 July 2012

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