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

Structured ray-wave vector vortex beams in multiple degrees of freedom from a laser: erratum
Structured ray-wave vector vortex beams in multiple degrees of freedom from a laser: erratum
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 their creation by complex optical devices such as metasurfaces, liquid crystals, and interferometers has hindered their versatility. Here we demonstrate a new class of vector vortex beam constructed from four DoFs as multiple ray-like trajectories with wave-like properties, which we create by operating a simple anisotropic microchip laser in a frequency-degenerate state. Our new structure is obtained by the superposition of two stable periodic ray trajectories, simultaneously fulfilling a completed oscillation in the cavity. By a simple external modulation, we can transform our ray trajectories into vortex beams with large OAM, multiple singularities, as well as exotic helical star-shaped patterns. Our experimental results are complemented by a complete theoretical framework for this new class of beam, revealing parallels to hybrid SU(2) coherent states. Our approach offers in principle unlimited DoFs for vectorial structured light with concomitant applications, for example, in engineering classically entangled light and in vectorial optical trapping and tweezing.
2334-2536
820 - 831
Shen, Yijie
42410cf7-8adb-4de6-9175-a1332245c368
Yang, Xilin
717450ee-2b01-4a9c-a14c-14ebb0d3b0e3
Naidoo, Darryl
66678f54-6fa9-4e6f-93b6-13d45fba5dbf
Fu, Xing
b93bc44e-4b8c-4e94-9b40-ad53938c59d6
Forbes, Andrew
e745cc06-a297-4fe8-9597-edf694c50c81
Shen, Yijie
42410cf7-8adb-4de6-9175-a1332245c368
Yang, Xilin
717450ee-2b01-4a9c-a14c-14ebb0d3b0e3
Naidoo, Darryl
66678f54-6fa9-4e6f-93b6-13d45fba5dbf
Fu, Xing
b93bc44e-4b8c-4e94-9b40-ad53938c59d6
Forbes, Andrew
e745cc06-a297-4fe8-9597-edf694c50c81

Shen, Yijie, Yang, Xilin, Naidoo, Darryl, Fu, Xing and Forbes, Andrew (2020) Structured ray-wave vector vortex beams in multiple degrees of freedom from a laser: erratum. Optica, 7 (7), 820 - 831. (doi:10.1364/OPTICA.382994).

Record type: Article

Abstract

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 their creation by complex optical devices such as metasurfaces, liquid crystals, and interferometers has hindered their versatility. Here we demonstrate a new class of vector vortex beam constructed from four DoFs as multiple ray-like trajectories with wave-like properties, which we create by operating a simple anisotropic microchip laser in a frequency-degenerate state. Our new structure is obtained by the superposition of two stable periodic ray trajectories, simultaneously fulfilling a completed oscillation in the cavity. By a simple external modulation, we can transform our ray trajectories into vortex beams with large OAM, multiple singularities, as well as exotic helical star-shaped patterns. Our experimental results are complemented by a complete theoretical framework for this new class of beam, revealing parallels to hybrid SU(2) coherent states. Our approach offers in principle unlimited DoFs for vectorial structured light with concomitant applications, for example, in engineering classically entangled light and in vectorial optical trapping and tweezing.

Text
1a-2020-opticaerratum-7-12-1705 - Accepted Manuscript
Available under License Creative Commons Attribution.
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More information

Accepted/In Press date: 20 June 2020
e-pub ahead of print date: 15 July 2020
Published date: 3 December 2020

Identifiers

Local EPrints ID: 449757
URI: http://eprints.soton.ac.uk/id/eprint/449757
ISSN: 2334-2536
PURE UUID: 246f3228-e8a2-4f38-8cc3-d96e91aa1f6c

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Date deposited: 16 Jun 2021 16:30
Last modified: 21 Oct 2021 16:51

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Contributors

Author: Yijie Shen
Author: Xilin Yang
Author: Darryl Naidoo
Author: Xing Fu
Author: Andrew Forbes

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