Transverse spin and transverse momentum in scattering of plane waves

Abstract

We study the near field to the far field evolution of spin angular momentum (SAM) density and the Poynting vector of the scattered waves from spherical scatterers. The results show that at the near field, the SAM density and the Poynting vector are dominated by their transverse components. While the former (transverse SAM) is independent of the helicity of the incident circular polarization state, the latter (transverse Poynting vector) depends upon the polarization state. It is further demonstrated that the magnitudes and the spatial extent of the transverse SAM and the transverse momentum components can be controllably enhanced by exploiting the interference of the transverse electric and transverse magnetic scattering modes.

References in corpus (5)

• Quantum spin Hall effect of light
• Measuring the Transverse Spin Density of Light
• Direct measurements of the extraordinary optical momentum and transverse spin-dependent force using a nano-cantilever
• Optical Polarization Möbius Strips and Points of Purely Transverse Spin Density
• Giant Goos-Hänchen shift in Scattering: the role of interfering Localized Plasmon modes

Cited by in corpus (7)

• The magnetic and electric transverse spin density of spatially confined light
• Transverse spin in scattering of focused radially and azimuthally polarized vector beams
• Coherent perfect absorption mediated enhancement of transverse spin in a gap plasmon guide
• Manipulating the transverse spin angular momentum and Belinfante momentum of spin-polarized light by a tilted stratified medium in optical tweezers
• Effects of mode mixing and avoided crossings on the transverse spin in a metal-dielectic-metal sphere
• Hidden singularities in 3D optical fields
• Imaging the transverse spin density of light via electromagnetically induced transparency