Abstract
Spin-orbit interactions (SOI), describing the transfer of a spin degree of freedom to an orbital angular momentum (OAM), have been widely explored in recent opto-acoustic studies for applications mainly in spintronics and for topological insulators [1]. We report the observation of SOI by Brillouin scattering in an optical nanofiber. Specifically, we describe the transfer of a spin degree of freedom from light incident to the nanofiber to an acoustic vortex with a topological charge of order 2 in the form of OAM. Coupled with the phase matching condition for the energy conservation during Brillouin scattering, it results in a backscattered wave with a spin opposite to the incident wave. This observation allows considering applications of opto-acoustic Brillouin memory based on polarization conversion through a SOI [2].
Original language | English |
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Article number | 06011 |
Journal | EPJ Web of Conferences |
Volume | 287 |
Number of pages | 2 |
ISSN | 2100-014X |
DOIs | |
Publication status | Published - 2023 |
Event | EOS Annual Meeting (EOSAM) 2023 - Dijon, France Duration: 11. Sept 2023 → 15. Sept 2023 https://www.europeanoptics.org/events/eos/eosam2023.html |
Conference
Conference | EOS Annual Meeting (EOSAM) 2023 |
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Country/Territory | France |
City | Dijon |
Period | 11/09/2023 → 15/09/2023 |
Internet address |