Ultrafast motion of a vortex in the double polariton full Bloch beam

Nina S. Voronova; Lorenzo Dominici; Fabrice P. Laussy; Amir Rahmani; Daniele Sanvitto

doi:10.1117/12.2651252

15 March 2023 Ultrafast motion of a vortex in the double polariton full Bloch beam

Nina S. Voronova, Lorenzo Dominici, Fabrice P. Laussy, Amir Rahmani, Daniele Sanvitto

Proceedings Volume PC12419, Ultrafast Phenomena and Nanophotonics XXVII; (2023) https://doi.org/10.1117/12.2651252
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

Vortices provide the elementary quanta of rotation in superfluids. Here we exploit the natural assets of open-dissipative exciton-polariton fluids to set into ultrafast spiraling motion a doubly-charged vortex, which also results in the time-varying orbital angular momentum of emitted light. The created topology comprises all the possible polariton pseudospins filling the associated Hilbert space of states, with each of them appearing twice in real space where the Bloch sphere is mapped. The intrinsic quantity characterizing the topological link between the two spaces— the Berry curvature—is reshaping in time, but always keeps a space integral of twice the solid angle.

Conference Presentation

Citation Download Citation

Nina S. Voronova, Lorenzo Dominici, Fabrice P. Laussy, Amir Rahmani, and Daniele Sanvitto "Ultrafast motion of a vortex in the double polariton full Bloch beam", Proc. SPIE PC12419, Ultrafast Phenomena and Nanophotonics XXVII, (15 March 2023); https://doi.org/10.1117/12.2651252

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