Bright coherent attosecond X-ray pulses from beam-driven relativistic mirrors
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arXiv
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| Auteurs principaux: | , , , , , |
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866915935401541632 |
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| author | Lamač, Marcel Valenta, Petr Nejdl, Jaroslav Chaulagain, Uddhab Jeong, Tae Moon Bulanov, Sergei Vladimirovich |
| author_facet | Lamač, Marcel Valenta, Petr Nejdl, Jaroslav Chaulagain, Uddhab Jeong, Tae Moon Bulanov, Sergei Vladimirovich |
| contents | Bright ultrashort X-ray pulses allow scientists to observe ultrafast motion of atoms and molecules. Coherent light sources, such as the X-ray free electron laser (XFEL), enable remarkable discoveries in cell biology, protein crystallography, chemistry or materials science. However, in contrast to optical lasers, lack of X-ray mirrors demands XFELs to amplify radiation over a single pass, requiring tens or hundreds of meters long undulators to produce bright femtosecond X-ray pulses. Here, we propose a new ultrafast coherent light source based on laser reflection from a relativistic mirror driven by a relativistic charged particle beam in micrometer-scale plasma. We show that reflection of millijoule-level laser pulses from such mirrors can produce bright, coherent and bandwidth-tunable attosecond X-ray pulses with peak intensity and spectral brightness comparable to XFELs. In addition, we find that beam-driven relativistic mirrors are highly robust, with laser-induced damage threshold exceeding solid-state components by at least two orders of magnitude. Our results promise a new way for bright coherent attosecond X-ray pulse generation, suitable for unique applications in fundamental physics, biology and chemistry. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_03277 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Bright coherent attosecond X-ray pulses from beam-driven relativistic mirrors Lamač, Marcel Valenta, Petr Nejdl, Jaroslav Chaulagain, Uddhab Jeong, Tae Moon Bulanov, Sergei Vladimirovich Plasma Physics Optics Bright ultrashort X-ray pulses allow scientists to observe ultrafast motion of atoms and molecules. Coherent light sources, such as the X-ray free electron laser (XFEL), enable remarkable discoveries in cell biology, protein crystallography, chemistry or materials science. However, in contrast to optical lasers, lack of X-ray mirrors demands XFELs to amplify radiation over a single pass, requiring tens or hundreds of meters long undulators to produce bright femtosecond X-ray pulses. Here, we propose a new ultrafast coherent light source based on laser reflection from a relativistic mirror driven by a relativistic charged particle beam in micrometer-scale plasma. We show that reflection of millijoule-level laser pulses from such mirrors can produce bright, coherent and bandwidth-tunable attosecond X-ray pulses with peak intensity and spectral brightness comparable to XFELs. In addition, we find that beam-driven relativistic mirrors are highly robust, with laser-induced damage threshold exceeding solid-state components by at least two orders of magnitude. Our results promise a new way for bright coherent attosecond X-ray pulse generation, suitable for unique applications in fundamental physics, biology and chemistry. |
| title | Bright coherent attosecond X-ray pulses from beam-driven relativistic mirrors |
| topic | Plasma Physics Optics |
| url | https://arxiv.org/abs/2403.03277 |