Nonlinear optical spin hall effect and long-range spin transport in polariton lasers
Liew, Timothy Chi Hin
Savvidis, P. G.
Kavokin, Alexey V.
Lagoudakis, P. G.
Date of Issue2012
School of Physical and Mathematical Sciences
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.
Physical review letters
© 2012 American Physical Society. This paper was published in Physical Review Letters and is made available as an electronic reprint (preprint) with permission of American Physical Society. The paper can be found at the following official DOI:[http://dx.doi.org/10.1103/PhysRevLett.109.036404]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.