Transverse spin in scattering of focused radially and azimuthally polarized vector beams

Abstract

We study the effect of focusing of the radially and azimuthally polarized vector beams on the spin angular momentum (SAM) density and Poynting vector of scattered waves from a Mie particle. Remarkably, the study reveals that the SAM density of the scattered field is solely transverse in nature for radially and azimuthally polarized incident vector beams; however the Poynting vector shows usual longitudinal character. We also demonstrate that the transverse SAM density can further be tuned with wavelength and focusing of the incident beam by exploiting the interference of different scattering modes. These results may stimulate further experimental technique of detecting the transverse spin and Belinfante's spin-momentum densities.

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• Magnetic light
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Cited by in corpus (5)

• Manipulating the transverse spin angular momentum and Belinfante momentum of spin-polarized light by a tilted stratified medium in optical tweezers
• Focused linearly-polarized light scattering from a silver nanowire: Experimental characterization of optical spin-Hall effect
• A Generalized framework of weak value amplification in path interference of polarized light for the enhancement of all possible polarization anisotropy effects
• Observation of Larmor-like precession of a single birefringent particle due to spin-dependent forces in tilted optical tweezers
• Ultrafast spatiotemporal chiroptical response of dielectric and plasmonic nanospheres