Guiding the optical vortex along predesigned parabolic trajectories from circular symmetric Airy-like beams

In this paper, by phase-modulating an optical wavefront on circular symmetric Airy vortex beams, we present the circular symmetric Airy-like vortex beams propagating along predesigned parabolic trajectories. Our result shows that we can realize the propagation of an optical vortex with a closed ring lobe along an accelerating parabolic trajectory within a certain propagation distance by using this kind of phase-modulated circular symmetric Airy beam. The vortex that is superimposed on the beams is able to reproduce after being blocked. Additionally, a single twisted dark channel or multiple tornado dark channels with orbital angular momentum rotating along the predesigned parabolic trajectories can also be formed when we impose the off-axis optical vortex on this kind of beam, which has potential in applications of light capturing. (C) 2022 Optica Publishing Group

Automated summary

In this paper, we demonstrate the generation of circular symmetric Airy-like vortex beams that propagate along pre-designed parabolic trajectories by phase-modulating the optical wavefront. The resulting beams exhibit the capability of closed-ring vortex propagation along an accelerating parabolic trajectory, and the vortex can reproduce after being blocked. Furthermore, by imposing off-axis optical vortexes, single twisted dark channels or multiple tornado dark channels with rotating orbital angular momentum along the predesigned parabolic trajectories can be formed, which has potential applications in light capturing.