Nonlinear optical spin Hall effect and long-range spin transport in polariton lasers

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 dist...

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Veröffentlicht in:Physical review letters 2012-07, Vol.109 (3), p.036404-036404, Article 036404
Hauptverfasser: Kammann, E, Liew, T C H, Ohadi, H, Cilibrizzi, P, Tsotsis, P, Hatzopoulos, Z, Savvidis, P G, Kavokin, A V, Lagoudakis, P G
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Sprache:eng
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Zusammenfassung: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.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.109.036404