Optical spin torque on a magneto-dielectric Mie sphere illuminated by an Airy light-sheet

Ningning Song; Bing Wei; Renxian Li; Ruike Yang; Shu Zhang

doi:10.1117/12.2621448

24 May 2022 Optical spin torque on a magneto-dielectric Mie sphere illuminated by an Airy light-sheet

Ningning Song, Bing Wei, Renxian Li, Ruike Yang, Shu Zhang

Proceedings Volume 12152, Mesophotonics: Physics and Systems at Mesoscale; 1215208 (2022) https://doi.org/10.1117/12.2621448
Event: SPIE Photonics Europe, 2022, Strasbourg, France

Abstract

The optical spin torque (OST) on a magneto-dielectric Mie sphere has been discussed and analyzed analytically in this investigation, using the Generalized Lorenz-Mie theory (GLMT). The incident electromagnetic field is an Airy light-sheet, with the parameters transverse scale kω₀ and attenuation parameter γ, where kω₀ modulates the width of the main lobe of the Airy light-sheet, and γ controls the attenuation of Airy light-sheet. The effect of kω₀ and γ of Airy light-sheet on the OST has been studied. The size parameters ka, permittivity, and permeability of the magneto-dielectric Mie sphere have also been discussed. This investigation of the optical spin torque (OST) on the magneto-dielectric Mie sphere has specific reference significance and is expected to be applicable to the field of manipulation of microparticles and biomedicine.

Conference Presentation

Citation Download Citation

Ningning Song, Bing Wei, Renxian Li, Ruike Yang, and Shu Zhang "Optical spin torque on a magneto-dielectric Mie sphere illuminated by an Airy light-sheet", Proc. SPIE 12152, Mesophotonics: Physics and Systems at Mesoscale, 1215208 (24 May 2022); https://doi.org/10.1117/12.2621448

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