Generation and characterization of an array of Airy-vortex beams

TL;DR

This paper reports the experimental creation and analysis of an array of Airy-vortex beams, combining theoretical design with practical holographic generation, with potential uses in optical trapping, communications, and metrology.

Contribution

It introduces a novel method to generate an array of Airy-vortex beams using superposition and holography, advancing optical beam shaping techniques.

Findings

Experimental results match theoretical predictions.

Successful generation and reconstruction of Airy-vortex beam arrays.

Potential applications demonstrated in optical trapping and communications.

Abstract

We present the experimental generation and analysis of both the intensity and phase of an optical vortex beam originating from a superposition of Airy-vortex beams. A new theoretical proposal is accessible to generate an array of Airy-vortex beams (AiVBs) from a superposition of N identical AiBs symmetrically located with respect to the propagation axis, where each beam is superimposed with OV and are characterized by the same topological charge l. Additionally, a single experimental apparatus enables both the optical generation and reconstruction of computer-generated holograms implemented on a spatial light modulator and its phase analysis by digital holography. The experimental results agreed with the theoretical predictions. The array of Airy-vortex beams has potential applications for trapping and rotating micro-particles in optical tweezers, modulation in optics communications, optical metrology, and others in optics and photonics.