Dynamic Control of Collapse in a Vortex Airy Beam

TL;DR

This paper investigates how vortex Airy beams in a Kerr medium can have their collapse behavior controlled and suppressed by vortex properties and initial conditions, revealing new ways to manipulate optical self-focusing.

Contribution

It introduces the concept that vortex fields can suppress collapse in Airy beams and details how initial power, vortex order, and modulation influence collapse location and dynamics.

Findings

Collapse is suppressed in vortex Airy beams compared to non-vortex beams.

Collapse location depends on initial power, vortex order, and modulation parameters.

Collapse can occur where the initial field is nearly zero, unlike previous reports.

Abstract

We study the self-focusing dynamics and collapse of vortex Airy optical beams in a Kerr medium. The collapse is suppressed compared to a non- vortex Airy beam in a Kerr medium as a result of the existence of vortex fields. The locations of collapse depend sensitively on the initial power, vortex order, and modulation parameters. Unlike the collapses reported before for any beam, the collapse may occur in a position where the initial field is nearly zero while no collapse appears in the region where the initial field is mainly distributed. This study sheds light on how to control and manipulate the location of collapse based on the initial power, vortex order and modulation parameter.