McWilliam, A., Cisowski, C. M., Ye, Z., Speirits, F. C. , Götte, J. B. , Barnett, S. M. and Franke-Arnold, S. (2023) Topological approach of characterizing optical skyrmions and multi-skyrmions. Laser and Photonics Reviews, 17(9), 2300155. (doi: 10.1002/lpor.202300155)
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Abstract
The skyrmion number of paraxial optical skyrmions can be defined solely via their polarization singularities and associated winding numbers, using a mathematical derivation that exploits Stokes's theorem. It is demonstrated that this definition provides a robust way to extract the skyrmion number from experimental data, as illustrated for a variety of optical (Néel-type) skyrmions and bimerons and multi-skyrmions. This method generates not only an increase in accuracy, but also provides an intuitive geometrical approach to understanding the topology of such quasi-particles of light and their robustness against smooth transformations.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Barnett, Professor Stephen and Franke-Arnold, Professor Sonja and Speirits, Dr Fiona and YE, Zhujun and McWilliam, Ms Amy and Goette, Dr Joerg and Cisowski, Dr Claire Marie |
| Authors: | McWilliam, A., Cisowski, C. M., Ye, Z., Speirits, F. C., Götte, J. B., Barnett, S. M., and Franke-Arnold, S. |
| College/School: | College of Science and Engineering > School of Physics and Astronomy |
| Journal Name: | Laser and Photonics Reviews |
| Publisher: | Wiley-VCH GmbH |
| ISSN: | 1863-8880 |
| ISSN (Online): | 1863-8899 |
| Published Online: | 30 July 2023 |
| Copyright Holders: | Copyright © 2023 The Authors |
| First Published: | First published in Laser and Photonics Reviews 17(9):2300155 |
| Publisher Policy: | Reproduced under a Creative Commons License |
| Data DOI: | 10.5525/gla.researchdata.1400 |
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