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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2505.12475 |
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| _version_ | 1866910951656128512 |
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| author | Cheng, Yuxin Feng, Chao Gu, Qiang |
| author_facet | Cheng, Yuxin Feng, Chao Gu, Qiang |
| contents | Attosecond electron beams are essential for investigating ultrafast structural and electronic dynamics in matter with atomic-scale resolution. We propose a novel method that enables robust attosecond-level electron bunch compression. This method employs THz-driven linear energy chirping and multidimensional phase-space manipulation, effectively compressing the electron bunch and suppressing its arrival timing jitter. Implemented in an MeV ultrafast electron diffraction beamline, this method compresses a 3~MeV, 0.1~pC electron beam from an initial duration of 50~fs to 810~as while retaining 6~fC of charge, with 850~as arrival-time jitter. This approach enables unprecedented timing resolution in ultrafast sciences and offers significant potential for other accelerator applications involving attosecond-scale electron beams. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_12475 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Multi-Dimensional Phase Space Manipulation for Attosecond Electron Bunch Compression Cheng, Yuxin Feng, Chao Gu, Qiang Accelerator Physics Attosecond electron beams are essential for investigating ultrafast structural and electronic dynamics in matter with atomic-scale resolution. We propose a novel method that enables robust attosecond-level electron bunch compression. This method employs THz-driven linear energy chirping and multidimensional phase-space manipulation, effectively compressing the electron bunch and suppressing its arrival timing jitter. Implemented in an MeV ultrafast electron diffraction beamline, this method compresses a 3~MeV, 0.1~pC electron beam from an initial duration of 50~fs to 810~as while retaining 6~fC of charge, with 850~as arrival-time jitter. This approach enables unprecedented timing resolution in ultrafast sciences and offers significant potential for other accelerator applications involving attosecond-scale electron beams. |
| title | Multi-Dimensional Phase Space Manipulation for Attosecond Electron Bunch Compression |
| topic | Accelerator Physics |
| url | https://arxiv.org/abs/2505.12475 |