Transverse spinning of unpolarized light

@article{Eismann2020TransverseSO,
  title={Transverse spinning of unpolarized light},
  author={J. Eismann and L. H. Nicholls and D. Roth and M. A. Alonso and P. Banzer and F. J. Rodr'iguez-Fortuno and A. Zayats and F. Nori and K. Bliokh},
  journal={Nature Photonics},
  year={2020},
  volume={15},
  pages={156-161}
}
It is well known that the spin angular momentum of light, and therefore that of photons, is directly related to their circular polarization. Naturally, for totally unpolarized light, polarization is undefined and the spin vanishes. However, for non-paraxial light, the recently discovered transverse spin component, orthogonal to the main propagation direction, is largely independent of the polarization state of the wave. Here, we demonstrate, both theoretically and experimentally, that this… Expand

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