Magnetic Skyrmion Encoding by Structured Light
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arXiv
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| Auteurs principaux: | , , , , |
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| Format: | Preprint |
| Publié: |
2026
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| _version_ | 1866908800542310400 |
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| author | Qifan, Zhang Wangke, Yu Zhongquan, Nie Yijie, Shen Shirong, Lin |
| author_facet | Qifan, Zhang Wangke, Yu Zhongquan, Nie Yijie, Shen Shirong, Lin |
| contents | Structured light fields, featuring unique topological properties and high tunability, have opened new frontiers in light-matter interactions with magnetic systems. However, the ultrafast and reconfigurable optical encoding of various types of topological magnetic textures remains a significant challenge. Here, we systematically investigate the encoding mechanism of structured light in magnets via the higher-order Poincaré sphere. By uncovering the precise relationship between the winding number of structured light and the topological charge of magnetic textures, we establish a fundamental topological connection between light and magnetism. This framework enables ultrafast, all-optical encoding of diverse topological spin textures in magnetic media, including skyrmions, antiskyrmions and skyrmion bags. Our work advances the fundamental understanding and all-optical control of topological magnetism, offering a promising route for designing skyrmion-based devices. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_23067 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Magnetic Skyrmion Encoding by Structured Light Qifan, Zhang Wangke, Yu Zhongquan, Nie Yijie, Shen Shirong, Lin Optics Structured light fields, featuring unique topological properties and high tunability, have opened new frontiers in light-matter interactions with magnetic systems. However, the ultrafast and reconfigurable optical encoding of various types of topological magnetic textures remains a significant challenge. Here, we systematically investigate the encoding mechanism of structured light in magnets via the higher-order Poincaré sphere. By uncovering the precise relationship between the winding number of structured light and the topological charge of magnetic textures, we establish a fundamental topological connection between light and magnetism. This framework enables ultrafast, all-optical encoding of diverse topological spin textures in magnetic media, including skyrmions, antiskyrmions and skyrmion bags. Our work advances the fundamental understanding and all-optical control of topological magnetism, offering a promising route for designing skyrmion-based devices. |
| title | Magnetic Skyrmion Encoding by Structured Light |
| topic | Optics |
| url | https://arxiv.org/abs/2601.23067 |