Spin Selective Filtering of Polariton Condensate Flow

Spin-selective spatial filtering of propagating polariton condensates, using a controllable spin-dependent gating barrier, in a one-dimensional semiconductor microcavity ridge waveguide is reported. A nonresonant laser beam provides the source of propagating polaritons while a second circularly pola...

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Bibliographic Details
Published in:arXiv.org 2015-04
Main Authors: Gao, T, Antón, C, Liew, T C H, Martín, M D, Hatzopoulos, Z, Viña, L, Eldridge, P S, Savvidis, P G
Format: Article
Language:English
Subjects:
Circular polarization
Condensates
Laser beams
Polaritons
Potential barriers
Spatial filtering
Stability
Online Access:Get full text
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Summary:Spin-selective spatial filtering of propagating polariton condensates, using a controllable spin-dependent gating barrier, in a one-dimensional semiconductor microcavity ridge waveguide is reported. A nonresonant laser beam provides the source of propagating polaritons while a second circularly polarized weak beam imprints a spin dependent potential barrier, which gates the polariton flow and generates polariton spin currents. A complete spin-based control over the blocked and transmitted polaritons is obtained by varying the gate polarization.
ISSN:2331-8422
DOI:10.48550/arxiv.1504.01968