Backscattered polarization patterns determined by conservation of angular momentum.

@article{Schwartz2008BackscatteredPP,
  title={Backscattered polarization patterns determined by conservation of angular momentum.},
  author={Chaim Schwartz and A Dogariu},
  journal={Journal of the Optical Society of America. A, Optics, image science, and vision},
  year={2008},
  volume={25 2},
  pages={
          431-6
        }
}
It is demonstrated that the occurence of backscattered polarization patterns relates to the conservation of angular momentum of light. Using the geometrical phase formalism in the spin space, we develop a model where the helicity-maintaining and the helicity-flipping multiple-scattering processes can be accounted for. The model explains practically all the symmetries present in the spatially resolved Mueller matrices.