Spin selective filtering of polariton condensate flow

Journal Article · Mon Jul 06 00:00:00 EDT 2015 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4926418· OSTI ID:22483138

Gao, T. ^[1]; Antón, C.; Martín, M. D. ^[2]; Liew, T. C. H. ^[3]; Hatzopoulos, Z. ^[1]; Viña, L. ^[2]

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1. FORTH-IESL, P.O. Box 1385, 71110 Heraklion, Crete (Greece)
2. Departamento de Física de Materiales, Universidad Autónoma de Madrid, Madrid 28049 (Spain)
3. School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371 (Singapore)

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.

• OSTI ID: 22483138
• Journal Information: Applied Physics Letters, Vol. 107, Issue 1; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BEAMS
CONDENSATES
CONTROL
CURRENTS
FILTERS
LASERS
POLARIZATION
POLARONS
SEMICONDUCTOR MATERIALS
SPIN
WAVEGUIDES