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Title: 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 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.
Authors:
 [1] ;  [2] ; ;  [3] ;  [4] ;  [5] ;  [1] ;  [2] ;  [3] ;  [4] ;  [4] ;  [1] ;  [6] ;  [1] ;  [2] ;  [7]
  1. FORTH-IESL, P.O. Box 1385, 71110 Heraklion, Crete (Greece)
  2. (Greece)
  3. Departamento de Física de Materiales, Universidad Autónoma de Madrid, Madrid 28049 (Spain)
  4. (Spain)
  5. School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371 (Singapore)
  6. (United States)
  7. (United Kingdom)
Publication Date:
OSTI Identifier:
22483138
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 107; Journal Issue: 1; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BEAMS; CONDENSATES; CONTROL; CURRENTS; FILTERS; LASERS; POLARIZATION; POLARONS; SEMICONDUCTOR MATERIALS; SPIN; WAVEGUIDES