# Polygonal Vortex Beams

@article{Shen2018PolygonalVB, title={Polygonal Vortex Beams}, author={Yijie Shen and Zhensong Wan and Yuan Meng and Xing Fu and Mali Gong}, journal={IEEE Photonics Journal}, year={2018}, volume={10}, pages={1-16} }

We originally exploit the vortex beams with patterns of closed polygons [namely, polygonal vortex beams (PVBs)] generated by a quasi-frequency-degenerate (QFD) Yb:CALGO laser resonator with astigmatic transformation. The PVBs with peculiar patterns of triangular, square, and parallelogram shapes carrying large orbital angular momentums (OAMs) are theoretically investigated and experimentally obtained in the vicinity of the SU(2) degenerate states of laser resonator. The PVBs in QFD states are…

## 35 Citations

Structured ray-wave vector vortex beams in multiple degrees of freedom from a laser

- Physics
- 2020

Vector vortex beams are conventionally created as the superposition of orbital angular momentum (OAM) modes with orthogonal polarizations, limiting the available degrees of freedom (DoFs) to 2, while…

Truncated triangular diffraction lattices and orbital-angular-momentum detection of vortex SU(2) geometric modes.

- PhysicsOptics express
- 2018

A truncated diffraction with a triangular aperture of the SU(2) geometric modes is reported and a method to detect the complicated orbital angular momentum (OAM) of an SU( 2) wave-packet is proposed.

Synthetic optical vortex beams from the analogous trajectory change of an artificial satellite

- PhysicsPhotonics Research
- 2019

We propose a method to generate specially shaped high-order singular beams of pre-designed intensity distributions. Such a method does not a priori assume a phase formula, but rather relies on the…

Generating a new type of polygonal perfect optical vortex.

- PhysicsOptics express
- 2021

A novel function of the PPOV is shown that can adjust the energy distribution at the vertices while maintaining the orbital angular momentum as much as possible, which facilitates applications in optical micro-manipulation.

Astigmatic hybrid SU(2) vector vortex beams: towards versatile structures in longitudinally variant polarized optics.

- PhysicsOptics express
- 2021

With the new structured light, the propagation-multiplexing multi-DoF patterns can be controlled in a single beam, which can largely extend related applications such as high-dimensional large-capacity optical communication, laser machining, and particle trapping.

Multifunctional Optical Vortex Beam Generator via Cross-Phase Based on Metasurface

- PhysicsNanomaterials
- 2022

We propose a multifunctional optical vortex beam (OVB) generator via cross-phase based on a metasurface. Accordingly, we separately investigate the two different propagation characteristics of OVB…

Polygonal shaping and multi-singularity manipulation of optical vortices via high-order cross-phase.

- PhysicsOptics express
- 2020

A new type of phase structure called the high-order cross-phase (HOCP) is proposed, which can be employed to modulate OVs to implement polygonal shaping and multi-singularity manipulation simultaneously at far-field to facilitate applications in optical micro-manipulation and optical communication.

Optical vortices 30 years on: OAM manipulation from topological charge to multiple singularities

- PhysicsLight, science & applications
- 2019

The authors survey the steady refinement of techniques used to create optical vortices, and explore their applications, which include sophisticated optical computing processes, novel microscopy and imaging techniques, the creation of ‘optical tweezers’ to trap particles of matter, and optical machining using light to pattern structures on the nanoscale.

Measurement and Shaping of Perfect Optical Vortex via Cross Phase

- Physics
- 2021

We investigate a method for the measurement and shaping of a perfect optical vortex (POV) by using the cross-phase for the first time. Experimentally, we propose a method to measure the topological…

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