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Spin dynamics of a vortical condensate of exciton polaritons in a GaAs microcavity

  • Optics and Laser Physics
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Abstract

The temporal dynamics of a spinor exciton-polariton condensate in a high-quality anisotropic GaAs microcavity under pulsed resonant excitation with light possessing a nonzero orbital angular momentum is investigated. The phenomenon of spatial separation of the spin components of the polariton condensate upon pumping with a coherent superposition of two beams with opposite circular polarizations and orbital angular momenta is observed. The key factors for the observation of this effect are the lateral anisotropy of the microcavity that causes a splitting between the linear components of the polariton ground state and the occurrence of opposite orbital angular momenta for the two spin components of the condensate. The experimental results are in qualitative agreement with the theoretical model of the phenomenon developed in JETP Lett. 104, 827 (2016).

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Authors and Affiliations

  1. Institute of Solid State Physics, Russian Academy of Sciences, Chernogolovka, Moscow region, 142432, Russia

    A. A. Demenev, A. V. Larionov, S. I. Novikov, D. R. Domaretskii & V. D. Kulakovskii

  2. Moscow Institute of Physics and Technology (State University), Dolgoprudnyi, Moscow region, 141700, Russia

    D. R. Domaretskii & V. D. Kulakovskii

Authors
  1. A. A. Demenev
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  2. A. V. Larionov
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  3. S. I. Novikov
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  4. D. R. Domaretskii
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  5. V. D. Kulakovskii
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Correspondence to A. A. Demenev.

Additional information

Original Russian Text © A.A. Demenev, A.V. Larionov, S.I. Novikov, D.R. Domaretskii, V.D. Kulakovskii, 2017, published in Pis’ma v Zhurnal Eksperimental’noi i Teoreticheskoi Fiziki, 2017, Vol. 106, No. 7, pp. 403–408.

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Demenev, A.A., Larionov, A.V., Novikov, S.I. et al. Spin dynamics of a vortical condensate of exciton polaritons in a GaAs microcavity. Jetp Lett. 106, 417–421 (2017). https://doi.org/10.1134/S0021364017190055

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  • DOI: https://doi.org/10.1134/S0021364017190055

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