Spin-orbital Conversion of Bessel Light Beams By Liquid Crystal Elements


For the first time, the spin-orbital conversion of the linearly polarized Bessel beams in the process of their propagation in the electrically-controlled liquid crystal cell has been realized experimentally. Variations in the polarization, phase, and spatial structure of the beam have been analyzed. It has been shown that, when a Bessel beam is propagating along the liquid crystal director, the generated beam is orthogonally polarized, whereas the topological charge is varied by two unities.

Keywords: Bessel light beams, spin-orbital conversion; liquid crystals

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