Formation dynamics of exciton-polariton vortices created by nonresonant annular pumping
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PhysRevB.101.245309.pdf
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Author
Berger, BerndSchmidt, Daniel
Ma, Xuekai
Schumacher, Stefan

Schneider, Christian
Höfling, Sven
Aßmann, Marc
Affiliation
Univ Arizona, Coll Opt SciIssue Date
2020-06-24
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AMER PHYSICAL SOCCitation
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 BRights
© 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
2469-9950EISSN
2469-9969Version
Final published versionSponsors
Deutsche Forschungsgemeinschaftae974a485f413a2113503eed53cd6c53
10.1103/physrevb.101.245309