Spin selective filtering of polariton condensate flow
作者： T. Gao , C Antón , Timothy Chi Hin Liew , MD Martín , Z Hatzopoulos
DOI: 10.1063/1.4926418
关键词: Laser 、 Polarization (waves) 、 Physics 、 Semiconductor 、 Polariton 、 Rectangular potential barrier 、 Spatial filter 、 Condensed matter physics 、 Polaron 、 Beam (structure)
摘要: Spin-selective spatial filtering of propagating polariton condensates, using a controllable spin-dependent gating barrier, in one-dimensional semiconductor microcavity ridge waveguide is reported. A nonresonant laser beam provides the source polaritons, while second circularly polarized weak imprints spin dependent potential which gates flow and generates currents. complete spin-based control over blocked transmitted polaritons obtained by varying gate polarization.
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