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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2404.11921 |
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| _version_ | 1866911844907614208 |
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| author | Liu, Weichao Cheng, Jie Wan, Chenhao |
| author_facet | Liu, Weichao Cheng, Jie Wan, Chenhao |
| contents | Toroidal vortex, a topological structure commonly observed in nature, exist in various types such as bubbles produced by dolphins and the air flow surrounding a flying dandelion. A toroidal vortex corresponds to a spatiotemporal wave packet in the shape of a donut that propagates in the direction perpendicular to the plane of the ring. In this work, we propose a circular asymmetric grating to generate vortex rings. A cylindrical vector wave packet is transformed by the device into a transmitted toroidal vortex pulse. Such a compact toroidal vortex generator may find applications in optical topology research and high-dimensional optical communications. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2404_11921 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Generation of optical toroidal vortex with circular asymmetric gratings Liu, Weichao Cheng, Jie Wan, Chenhao Optics Toroidal vortex, a topological structure commonly observed in nature, exist in various types such as bubbles produced by dolphins and the air flow surrounding a flying dandelion. A toroidal vortex corresponds to a spatiotemporal wave packet in the shape of a donut that propagates in the direction perpendicular to the plane of the ring. In this work, we propose a circular asymmetric grating to generate vortex rings. A cylindrical vector wave packet is transformed by the device into a transmitted toroidal vortex pulse. Such a compact toroidal vortex generator may find applications in optical topology research and high-dimensional optical communications. |
| title | Generation of optical toroidal vortex with circular asymmetric gratings |
| topic | Optics |
| url | https://arxiv.org/abs/2404.11921 |