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Realization of all-optical vortex switching in exciton-polariton condensates

Author

Listed:
  • Xuekai Ma

    (Universität Paderborn)

  • Bernd Berger

    (Experimentelle Physik 2, Technische Universität Dortmund)

  • Marc Aßmann

    (Experimentelle Physik 2, Technische Universität Dortmund)

  • Rodislav Driben

    (Universität Paderborn)

  • Torsten Meier

    (Universität Paderborn)

  • Christian Schneider

    (Physikalisches Institut and Würzburg-Dresden Cluster of Excellence ct.qmat, Universität Würzburg)

  • Sven Höfling

    (Physikalisches Institut and Würzburg-Dresden Cluster of Excellence ct.qmat, Universität Würzburg
    School of Physics and Astronomy, University of St. Andrews)

  • Stefan Schumacher

    (Universität Paderborn
    University of Arizona)

Abstract

Vortices are topological objects representing the circular motion of a fluid. With their additional degree of freedom, the vorticity, they have been widely investigated in many physical systems and different materials for fundamental interest and for applications in data storage and information processing. Vortices have also been observed in non-equilibrium exciton-polariton condensates in planar semiconductor microcavities. There they appear spontaneously or can be created and pinned in space using ring-shaped optical excitation profiles. However, using the vortex state for information processing not only requires creation of a vortex but also efficient control over the vortex after its creation. Here we demonstrate a simple approach to control and switch a localized polariton vortex between opposite states. In our scheme, both the optical control of vorticity and its detection through the orbital angular momentum of the emitted light are implemented in a robust and practical manner.

Suggested Citation

  • Xuekai Ma & Bernd Berger & Marc Aßmann & Rodislav Driben & Torsten Meier & Christian Schneider & Sven Höfling & Stefan Schumacher, 2020. "Realization of all-optical vortex switching in exciton-polariton condensates," Nature Communications, Nature, vol. 11(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-14702-5
    DOI: 10.1038/s41467-020-14702-5
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    Cited by:

    1. Philip A. Thomas & Kishan S. Menghrajani & William L. Barnes, 2022. "All-optical control of phase singularities using strong light-matter coupling," Nature Communications, Nature, vol. 13(1), pages 1-6, December.
    2. Yao Li & Xuekai Ma & Xiaokun Zhai & Meini Gao & Haitao Dai & Stefan Schumacher & Tingge Gao, 2022. "Manipulating polariton condensates by Rashba-Dresselhaus coupling at room temperature," Nature Communications, Nature, vol. 13(1), pages 1-6, December.

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