Nonlinear Optical Spin Hall Effect and Long-Range Spin Transport in Polariton Lasers
Nonlinear Optical Spin Hall Effect and Long-Range Spin Transport in Polariton Lasers
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DOI：
10.1103/physrevlett.109.036404
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发表时间：
2012-07-18
影响因子：
8.6
通讯作者：
Lagoudakis, P. G.
中科院分区：
文献类型：
--
作者：
Kammann, E.;Liew, T. C. H.;Lagoudakis, P. G.
本文报道了GaAs/AlGaAs微腔中激子-极化激元凝聚体在高度非共振圆极化激发下的光学自旋霍尔效应的非线性模拟的实验观察。圆偏振极化激元凝聚体在宏观距离上传播，而集体凝聚体自旋相干地围绕样品平面中的有效磁场进行多达四个完整的旋转。
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.