Multiple quasi-perfect vector vortex beams with arbitrary 3D position on focus

VERGARA, MARTIN; IEMMI, CLAUDIO

Applied Optics

Optica Publishing Group (formerly OSA)

Año: 2022 vol. 61 p. 5926 - 5933

1559-128X

We show a method for creating multiple independent quasi-perfect vector vortex beams with real-time programmable radii, topological charges, polarization orders, and position in three dimensions using a device based on a phase-only liquid-crystal-on-silicon display. We achieved the simultaneous generation of up to seven independent beams, with topological charges from −3 to 3, and found great agreement between the simulated and the measured phases and polarization structures. Additionally, we used the same scheme for enhancing the depth of focus of a single beam, resulting in a “tube” beam that preserves its properties during propagation.