[HTML][HTML] Orbital angular momentum of light for communications

AE Willner, K Pang, H Song, K Zou, H Zhou - Applied Physics Reviews, 2021 - pubs.aip.org
Structured light, especially beams carrying orbital angular momentum (OAM), has gained
much interest due to its unique amplitude and phase structures. In terms of communication …

Nanophotonic Materials for Twisted‐Light Manipulation

H Ren, SA Maier - Advanced Materials, 2023 - Wiley Online Library
Twisted light, an unbounded set of helical spatial modes carrying orbital angular momentum
(OAM), offers not only fundamental new insights into structured light–matter interactions, but …

Cascaded metasurfaces for high-purity vortex generation

F Mei, G Qu, X Sha, J Han, M Yu, H Li, Q Chen… - Nature …, 2023 - nature.com
We introduce a new paradigm for generating high-purity vortex beams with metasurfaces. By
applying optical neural networks to a system of cascaded phase-only metasurfaces, we …

Orbital angular momentum beams for high-capacity communications

AE Willner, H Song, K Zou, H Zhou… - Journal of Lightwave …, 2022 - ieeexplore.ieee.org
There is a growing interest in structured light, especially orbital angular momentum (OAM)
beams, due to its unique amplitude and phase structure. Multiple orthogonal OAM beams …

Structuring total angular momentum of light along the propagation direction with polarization-controlled meta-optics

AH Dorrah, NA Rubin, M Tamagnone, A Zaidi… - Nature …, 2021 - nature.com
Recent advances in wavefront sha** have enabled complex classes of Structured Light
which carry spin and orbital angular momentum, offering new tools for light-matter …

Modal analysis of structured light with spatial light modulators: a practical tutorial

J Pinnell, I Nape, B Sephton, MA Cox… - Journal of the Optical …, 2020 - opg.optica.org
A quantitative analysis of optical fields is essential, particularly when the light is structured in
some desired manner, or when there is perhaps an undesired structure that must be …

All‐dielectric metasurface‐enabled multiple vortex emissions

H Zhang, X Sha, Q Chen, J Cheng, Z Ji… - Advanced …, 2022 - Wiley Online Library
On‐chip integrated micro‐and nanoscale vortex lasers are key elements for addressing the
exponentially growing demand for information capacity. Although tunable vortex microlasers …

Phase singularities and optical vortices in photonics

AP Porfirev, AA Kuchmizhak, SO Gurbatov… - Phys. Usp, 2022 - ufn.ru
Since the second half of the 20th century, ideas to develop methods for the formation of
optical vortices (OVs) or OV beams–regions of circular motion of energy flow in an …

[BUKU][B] Topological charge of optical vortices

VV Kotlyar, AA Kovalev, AG Nalimov - 2022 - taylorfrancis.com
This book is devoted to the consideration of unusual laser beams–vortex or singular beams.
It contains many numerical examples, which clearly show how the phase of optical vortices …

Radially and azimuthally pure vortex beams from phase-amplitude metasurfaces

M de Oliveira, M Piccardo, S Eslami, V Aglieri… - ACS …, 2023 - ACS Publications
To exploit the full potential of the transverse spatial structure of light using the Laguerre–
Gaussian basis, it is necessary to control the azimuthal and radial components of the …