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| Hauptverfasser: | , , , , , , , , , , , , |
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| Format: | Preprint |
| Veröffentlicht: |
2025
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| Online-Zugang: | https://arxiv.org/abs/2511.16155 |
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| _version_ | 1866914165432516608 |
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| author | Chen, Qian Zhang, Shuoshuo Xian, Guoyu Hu, Haoqiang Wu, Xiaohua Wu, Xiaofei Huang, Jer-Shing Huang, Chen-Bin Zhong, Jin-Hui Zhang, Yuquan Yuan, Xiaocong Min, Changjun Dai, Yanan |
| author_facet | Chen, Qian Zhang, Shuoshuo Xian, Guoyu Hu, Haoqiang Wu, Xiaohua Wu, Xiaofei Huang, Jer-Shing Huang, Chen-Bin Zhong, Jin-Hui Zhang, Yuquan Yuan, Xiaocong Min, Changjun Dai, Yanan |
| contents | Spatiotemporal vortices are polychromatic modes that intertwine orbital angular momentum (OAM) in space and time. Here we introduce a new class of such vortices, spatiotemporal plasmonic vortices (STPVs), carrying nontrivial topological spin textures. They are generated by chronotopic interference of temporally delayed plasmonic eigen-vortices, where a $π$-phase dislocation in the space-frequency domain maps into a 2$π$ spiraling phase in space-time, with the resulting focus-defocus dynamics emulate U(1) gauge transitions. Using interferometric time-resolved photoemission electron microscopy (ITR-PEEM), we directly image their nanometer-attosecond (nano-atto) evolution and control vortex number and position. Quantum-path analysis of coherent two-photon photoemission (2PP) processes reveals the nonlinear plasmonic polarization fields and angular-momentum conservation, establishing STPVs as a platform for probing spatiotemporally structured quantum matter. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_16155 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Synthetic Spatiotemporal Plasmonic Vortices On Chip Chen, Qian Zhang, Shuoshuo Xian, Guoyu Hu, Haoqiang Wu, Xiaohua Wu, Xiaofei Huang, Jer-Shing Huang, Chen-Bin Zhong, Jin-Hui Zhang, Yuquan Yuan, Xiaocong Min, Changjun Dai, Yanan Mesoscale and Nanoscale Physics Spatiotemporal vortices are polychromatic modes that intertwine orbital angular momentum (OAM) in space and time. Here we introduce a new class of such vortices, spatiotemporal plasmonic vortices (STPVs), carrying nontrivial topological spin textures. They are generated by chronotopic interference of temporally delayed plasmonic eigen-vortices, where a $π$-phase dislocation in the space-frequency domain maps into a 2$π$ spiraling phase in space-time, with the resulting focus-defocus dynamics emulate U(1) gauge transitions. Using interferometric time-resolved photoemission electron microscopy (ITR-PEEM), we directly image their nanometer-attosecond (nano-atto) evolution and control vortex number and position. Quantum-path analysis of coherent two-photon photoemission (2PP) processes reveals the nonlinear plasmonic polarization fields and angular-momentum conservation, establishing STPVs as a platform for probing spatiotemporally structured quantum matter. |
| title | Synthetic Spatiotemporal Plasmonic Vortices On Chip |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2511.16155 |