Modified Bessel–Gaussian Vortex Beam with an Adjustable Broken Opening

Abstract

In this study, an open-ring controllable Bessel vortex beam is theoretically and experimentally constructed with a power-exponent-phase vortex. Its distribution in the far field after being blocked with obstacles is subsequently investigated. In the far field, the beam exhibits different degrees of the open-loop effect following adjustments in the phase term of the power exponent. For an obstructed beam, the direction of the open loop is offset by a certain value, and different open-loop angles can be achieved for different blocking angles. The developed beam can be used to guide particles and avoid obstacles.

Superposing and modulating heterogeneous optical vortices of high-order orbital angular momentum

“…) n ] of the power exponent. In accordance with previous literature [41], we have set the exponent to n = 2, and the ψ is expressed as…”

Generating scalar and vector modes of Bessel beams utilizing holographic axicon phase with spatial light modulator

“…Metasurfaces have also been reported for higher-order BG beam generation [27]. A BG vortex beam possessing a helical phase is constructed via a power-exponent-phase vortex [28]. The vortex phase carried by BG beams can potentially be used in various applications.…”

Generation and Talbot Effect of Optical Vortex Lattices with High Orbital Angular Momenta

“…[15][16][17] Unlike classical vortex beams, spatially distributed OV lattices (OVLs) with multiple phase singularities have recently garnered attention because of their parallel processing capacity. [18][19][20][21][22][23][24][25][26][27][28][29][30][31][32] Numerous methods have been developed for generating an DOI: 10.1002/qute.202300203 OVL using diffractive optical devices such as Dammann gratings [33] and spatial light modulators (SLMs). [34,35] An alternate method for generating OVLs is using vortex light interference with Laguerre-Gaussian beams, [36] Bessel beams, [37] and perfect OV.…”