Spin-orbit interaction through Brillouin scattering in nanofibers

Maxime Zerbib*, Maxime Romanet, Thibaut Sylvestre, Christian Wolff, Birgit Stiller, Jean-Charles Beugnot, Kien Phan Huy

*Corresponding author for this work

Research output: Contribution to journalConference articleResearchpeer-review

12 Downloads (Pure)

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 languageEnglish
Article number06011
JournalEPJ Web of Conferences
Volume287
Number of pages2
ISSN2100-014X
DOIs
Publication statusPublished - 2023
EventEOS Annual Meeting (EOSAM) 2023
- Dijon, France
Duration: 11. Sept 202315. Sept 2023
https://www.europeanoptics.org/events/eos/eosam2023.html

Conference

ConferenceEOS Annual Meeting (EOSAM) 2023
Country/TerritoryFrance
CityDijon
Period11/09/202315/09/2023
Internet address

Cite this