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 theortically and experimentally a generalized family of these, the tunable optical skyrmions, unveiling a new...

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Bibliographic Details
Published in:ACS photonics 2022-01, Vol.9 (1), p.296-303
Main Authors: Shen, Yijie, Martínez, Eduardo Casas, Rosales-Guzmán, Carmelo
Format: Article
Language:English
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Summary: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 theortically 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.
ISSN:2330-4022
2330-4022
DOI:10.1021/acsphotonics.1c01703