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    Formation dynamics of exciton-polariton vortices created by nonresonant annular pumping

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    Name:
    PhysRevB.101.245309.pdf
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    Description:
    Final Published Version
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    Author
    Berger, Bernd
    Schmidt, Daniel
    Ma, Xuekai
    Schumacher, Stefan cc
    Schneider, Christian
    Höfling, Sven
    Aßmann, Marc
    Affiliation
    Univ Arizona, Coll Opt Sci
    Issue Date
    2020-06-24
    
    Metadata
    Show full item record
    Publisher
    AMER PHYSICAL SOC
    Citation
    Berger, B., Schmidt, D., Ma, X., Schumacher, S., Schneider, C., Höfling, S., & Aßmann, M. (2020). Formation dynamics of exciton-polariton vortices created by nonresonant annular pumping. Physical Review B, 101(24), 245309.
    Journal
    PHYSICAL REVIEW B
    Rights
    © 2020 American Physical Society.
    Collection Information
    This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
    Abstract
    We study the spontaneous formation of exciton-polariton vortices in an all-optical nonresonantly excited annular trap, which is formed by ring-shaped subpicosecond laser pulses. Since the light emitted by these vortices carries orbital angular momentum (OAM) corresponding to their topological charge, we apply a dedicated OAM spectroscopy technique to detect the OAM of the measurement signal with picosecond time resolution. This allows us to identify the formation of OAM modes and investigate the dynamics of the vortex formation process. We also study the power dependence of this process and how the ring diameter influences the formation of OAM modes.
    ISSN
    2469-9950
    EISSN
    2469-9969
    DOI
    10.1103/physrevb.101.245309
    Version
    Final published version
    Sponsors
    Deutsche Forschungsgemeinschaft
    ae974a485f413a2113503eed53cd6c53
    10.1103/physrevb.101.245309
    Scopus Count
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    UA Faculty Publications

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