Generation of composite vortex beams by independent Spatial Light Modulator pixel addressing

Szatkowski, Mateusz; Masajada, Jan; Augustyniak, Ireneusz; Nowacka, Klaudia

doi:10.1016/j.optcom.2020.125341

Cited by 28 publications

(14 citation statements)

References 46 publications

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“…[6] Unlike a vortex beam with a single singularity, composite vortices with more elaborate singularity distributions are endowed with enhanced capacity and more flexibility, [7,8] which have promising applications in multiple optical traps, [9] electromagnetically induced transparency, [10] and quantum computation gate. [11] Currently, such composite vortex beams (CVBs) are mainly generated based on spatial light modulators (SLMs), [7,12] which suffer from large volume, high cost, and low resolution. To keep the pace of device miniaturization and system integration, tackling these challenges typically associated with CVBs generation is urgently needed.…”

Section: Introductionmentioning

confidence: 99%

Creating Composite Vortex Beams with a Single Geometric Metasurface

et al. 2022

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Section: Introductionmentioning

confidence: 99%

Creating Composite Vortex Beams with a Single Geometric Metasurface

et al. 2022

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“…For off-axis interference between two plane wave vortex beams of different TCs, fork-shaped fringes form, and the sign and magnitude of TCs' difference can be determined by analyzing these interferograms and the orientation between two vortex beams [13][14][15][16][17][18][19][20][21]. For coaxial interference between two plane wave vortex beams of different TCs, a petal-shaped pattern forms, and the petal number is just the magnitude of TCs' difference [23][24][25][26][27]. For coaxial interference between a plane wave vortex beam and a spherical wave beam, a spiral pattern forms, and it can be used to decide both the sign and value of TCs [20,[28][29][30][31][32].…”

Section: Introductionmentioning

confidence: 99%

Characteristics of Spiral Patterns Formed by Coaxial Interference between Two Vortex Beams with Different Radii of Wavefront Curvatures

2021

Photonics

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Spiral pattern is formed for coaxial interference between two vortex beams with different radii of wavefront curvatures and different topological charges (TCs). A theoretical model considering various parameters (such as phase difference, radius of wavefront curvature, and TCs) is established to predict all kinds of interference patterns. An improved Mach-Zehnder interferometer is set up in an experiment to generate different kinds of spiral patterns and verify the theoretical model. The number of spiral lobes is determined by the absolute value of TCs’ difference between two vortex beams, and the twist direction relates to the sign of TCs’ difference and the difference of reciprocals for the radii of wavefront curvature, clockwise for the same sign, and counterclockwise for the opposite signs. The twist direction of the spiral pattern reverses and the lobes direction near the core of the pattern changes obviously when the spherical wave changes from convergence to divergence.

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“…Many different problems concerning the generation and propagation of the vortex beam have been considered in the literature so far. Some of them consider optical fields containing the lattice of vortices generated, for example, by three or more plane or spherical waves interference [6][7][8][9]; or so called composed vortices, i.e., vortices which are generated by two or more overlapping beams [10][11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Off-Axis Vortex Beam Propagation through Classical Optical System in Terms of Kummer Confluent Hypergeometric Function

et al. 2020

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The analytical solution for the propagation of the laser beam with optical vortex through the system of lenses is presented. The optical vortex is introduced into the laser beam (described as Gaussian beam) by spiral phase plate. The solution is general as it holds for the optical vortex of any integer topological charge, the off-axis position of the spiral phase plate and any number of lenses. Some intriguing conclusions are discussed. The higher order vortices are unstable and split under small phase or amplitude disturbance. Nevertheless, we have shown that off-axis higher order vortices are stable during the propagation through the set of lenses described in paraxial approximation, which is untypical behavior. The vortex trajectory registered at image plane due to spiral phase plate shift behaves like a rigid body. We have introduced a new factor which in our beam plays the same role as Gouy phase in pure Gaussian beam.

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Generation of composite vortex beams by independent Spatial Light Modulator pixel addressing

Cited by 28 publications

References 46 publications

Creating Composite Vortex Beams with a Single Geometric Metasurface

Creating Composite Vortex Beams with a Single Geometric Metasurface

Characteristics of Spiral Patterns Formed by Coaxial Interference between Two Vortex Beams with Different Radii of Wavefront Curvatures

Off-Axis Vortex Beam Propagation through Classical Optical System in Terms of Kummer Confluent Hypergeometric Function

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