Free-Space Propagation and Skyrmion Topology of Toroidal Electromagnetic Pulses
Fuente:
arXiv
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| Autores principales: | , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2023
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| Materias: | |
| Acceso en línea: | |
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| _version_ | 1866917181163307008 |
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| author | Wang, Ren Hu, Zhi-Qiang Bao, Pan-Yi Shi, Shuai Wang, Bing-Zhong Zheludev, Nikolay I. Shen, Yijie |
| author_facet | Wang, Ren Hu, Zhi-Qiang Bao, Pan-Yi Shi, Shuai Wang, Bing-Zhong Zheludev, Nikolay I. Shen, Yijie |
| contents | Toroidal electromagnetic pulses have been recently reported as nontransverse, space-time nonseparable topological excitations of free space [Nat. Photon. 16, 523-528 (2022)]. However, their propagation dynamics and topological configurations have not been comprehensively experimentally characterized. Here, we report that microwave toroidal pulses can be launched by a broadband conical horn antenna. We experimentally map their skyrmionic textures and demonstrate how that during propagation the pulses evolves towards stronger space-time nonseparability and closer proximity to the canonical Hellwarth and Nouchi toroidal pulses. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2311_01765 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Free-Space Propagation and Skyrmion Topology of Toroidal Electromagnetic Pulses Wang, Ren Hu, Zhi-Qiang Bao, Pan-Yi Shi, Shuai Wang, Bing-Zhong Zheludev, Nikolay I. Shen, Yijie Classical Physics Optics Toroidal electromagnetic pulses have been recently reported as nontransverse, space-time nonseparable topological excitations of free space [Nat. Photon. 16, 523-528 (2022)]. However, their propagation dynamics and topological configurations have not been comprehensively experimentally characterized. Here, we report that microwave toroidal pulses can be launched by a broadband conical horn antenna. We experimentally map their skyrmionic textures and demonstrate how that during propagation the pulses evolves towards stronger space-time nonseparability and closer proximity to the canonical Hellwarth and Nouchi toroidal pulses. |
| title | Free-Space Propagation and Skyrmion Topology of Toroidal Electromagnetic Pulses |
| topic | Classical Physics Optics |
| url | https://arxiv.org/abs/2311.01765 |