Generation of optical skyrmions with tunable topological textures
Generation of optical skyrmions with tunable topological textures
In recent times, the optical-analogous skyrmions, topological quasiparticles with sophisticated vectorial structures in light, have received an increasing amount of interest. Here we propose theoretically and experimentally a generalized family of these, the tunable optical skyrmions, unveiling a new mechanism to transform between various skyrmionic topologies, including Néel, Bloch, and antiskyrmion types, via simple parametric tuning. In addition, a geometric Skyrme−Poincaré representation is proposed to visualize the complete topological evolution of tunable skyrmions, which we term the skyrmion torus. To generate the tunable optical skyrmions experimentally, we implemented a digital hologram system based on a spatial light modulator, the results of which show great agreement with our theoretical predictions.
orbital angular momentum, skyrmion, spatial light modulator, structured light, topology, vector beams
296 - 303
Shen, Yijie
42410cf7-8adb-4de6-9175-a1332245c368
Martínez, Eduardo Casas
c89490f4-782d-4191-96d7-f1ad4f0b83bc
Rosales-Guzmán, Carmelo
4cb19501-3c03-48f9-8548-9ceba56b2a23
19 January 2022
Shen, Yijie
42410cf7-8adb-4de6-9175-a1332245c368
Martínez, Eduardo Casas
c89490f4-782d-4191-96d7-f1ad4f0b83bc
Rosales-Guzmán, Carmelo
4cb19501-3c03-48f9-8548-9ceba56b2a23
Shen, Yijie, Martínez, Eduardo Casas and Rosales-Guzmán, Carmelo
(2022)
Generation of optical skyrmions with tunable topological textures.
ACS Photonics, 9 (1), .
(doi:10.1021/acsphotonics.1c01703).
Abstract
In recent times, the optical-analogous skyrmions, topological quasiparticles with sophisticated vectorial structures in light, have received an increasing amount of interest. Here we propose theoretically and experimentally a generalized family of these, the tunable optical skyrmions, unveiling a new mechanism to transform between various skyrmionic topologies, including Néel, Bloch, and antiskyrmion types, via simple parametric tuning. In addition, a geometric Skyrme−Poincaré representation is proposed to visualize the complete topological evolution of tunable skyrmions, which we term the skyrmion torus. To generate the tunable optical skyrmions experimentally, we implemented a digital hologram system based on a spatial light modulator, the results of which show great agreement with our theoretical predictions.
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Skyrmion_torus (2)
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Accepted/In Press date: 17 December 2021
e-pub ahead of print date: 4 January 2022
Published date: 19 January 2022
Additional Information:
Funding Information:
This work was supported by the National Natural Science Foundation of China (grant nos. 61975047 and 11934013) and the High-Level Talents Project of Heilongjiang Province (grant no. 2020GSP12).
Publisher Copyright:
© 2022 American Chemical Society
Keywords:
orbital angular momentum, skyrmion, spatial light modulator, structured light, topology, vector beams
Identifiers
Local EPrints ID: 455269
URI: http://eprints.soton.ac.uk/id/eprint/455269
ISSN: 2330-4022
PURE UUID: 327104a8-47f2-4e0a-a4bc-80b453812b53
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Date deposited: 16 Mar 2022 17:38
Last modified: 17 Mar 2024 07:09
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Contributors
Author:
Yijie Shen
Author:
Eduardo Casas Martínez
Author:
Carmelo Rosales-Guzmán
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