Spin-Orbit Coupling and the Evolution of Transverse Spin
arXiv:1905.12539 · doi:10.1103/PhysRevResearch.1.033143
Abstract
We investigate the evolution of transverse spin in tightly focused circularly polarized beams of light, where spin-orbit coupling causes a local rotation of the polarization ellipses upon propagation through the focal volume. The effect can be explained as a relative Gouy-phase shift between the circularly polarized transverse field and the longitudinal field carrying orbital angular momentum. The corresponding rotation of the electric transverse spin density is observed experimentally by utilizing a recently developed reconstruction scheme, which relies on transverse-spin-dependent directional scattering of a nano-probe.
arXiv comment4 pages, 2 figures
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Cited by in corpus (6)
- Transverse spinning of unpolarized light
- Controlled transfer of transverse optical angular momentum to optically trapped birefringent particles
- Spin/momentum properties of the paraxial optical beams
- Spin-orbit interaction of light in three-dimensional microcavities
- Imaging the transverse spin density of light via electromagnetically induced transparency
- Hidden singularities in 3D optical fields