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Distortion of Polarized Bessel Vortex Beams Propagation in Sandstorm

Based on the vector angular spectrum expansion method, distortion of polarized Bessel vortex beams in sandstorm is investigated. Assuming that the number density of sandstorm varies with the height, the model of stratified sandstorm is established. The equivalent permittivity of a stratified sandstorm in different layers is calculated by utilizing equivalent medium theory. The magnitude profiles of the reflected and transmitted field components of an oblique Bessel vortex beam incident on sandstorm are calculated and discussed. In terms of spiral spectrum expansion method, the distributions of orbital angular momentum states of the reflected and transmitted fields are obtained. This research may provide some theoretical supports for further work in exploring the potential communication applications of vortex beams in sandstorm environment.