Experimental Demonstration of Beam-Driven Wakefield Acceleration in Laser-Plasma Filament
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arXiv
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| Autores principales: | , , , , , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2026
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| _version_ | 1866914352827727872 |
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| author | Galletti, M. Verra, L. Biagioni, A. Carillo, M. Crincoli, L. Demitra, R. Parise, G. Di Pirro, G. Pompili, R. Stocchi, F. Villa, F. Zigler, A. Ferrario, M. |
| author_facet | Galletti, M. Verra, L. Biagioni, A. Carillo, M. Crincoli, L. Demitra, R. Parise, G. Di Pirro, G. Pompili, R. Stocchi, F. Villa, F. Zigler, A. Ferrario, M. |
| contents | Self-guided femtosecond laser pulses propagating in low-pressure gas can generate plasma filaments, establishing a new framework for plasma wakefield acceleration. Unlike conventional schemes relying on mechanically confined or preformed plasma channels, this method exploits the intrinsic non-linear light-matter interaction, greatly reducing the energy required to generate plasma. This, in turn, allows to realise tunable stages, potentially operating above kHz repetition rate and with meter-scale interaction lengths and transverse sizes down to a few tens of micrometres. Moreover, the laser-plasma filament reproducibility is intrinsically higher than state-of-the-art discharge-plasmas, where the breakdown process is initiated in a stochastic and uncontrolled manner. As a result, laser-based plasma formation offers improved reliability and control over plasma parameters. Here we report a proof-of-principle experimental demonstration of beam-driven wakefield acceleration of electron bunches with an accelerating field exceeding 250 MV/m in a laser-generated plasma filament. The results are cross-checked with numerical simulation, showing an excellent agreement and providing a complete picture of the physical process. Beyond particle acceleration, the concept bridges laser filamentation physics, advanced plasma photonics and compact accelerator technologies, offering a promising route towards sustainable, high-repetition-rate plasma-based facilities. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2602_22841 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Experimental Demonstration of Beam-Driven Wakefield Acceleration in Laser-Plasma Filament Galletti, M. Verra, L. Biagioni, A. Carillo, M. Crincoli, L. Demitra, R. Parise, G. Di Pirro, G. Pompili, R. Stocchi, F. Villa, F. Zigler, A. Ferrario, M. Plasma Physics Self-guided femtosecond laser pulses propagating in low-pressure gas can generate plasma filaments, establishing a new framework for plasma wakefield acceleration. Unlike conventional schemes relying on mechanically confined or preformed plasma channels, this method exploits the intrinsic non-linear light-matter interaction, greatly reducing the energy required to generate plasma. This, in turn, allows to realise tunable stages, potentially operating above kHz repetition rate and with meter-scale interaction lengths and transverse sizes down to a few tens of micrometres. Moreover, the laser-plasma filament reproducibility is intrinsically higher than state-of-the-art discharge-plasmas, where the breakdown process is initiated in a stochastic and uncontrolled manner. As a result, laser-based plasma formation offers improved reliability and control over plasma parameters. Here we report a proof-of-principle experimental demonstration of beam-driven wakefield acceleration of electron bunches with an accelerating field exceeding 250 MV/m in a laser-generated plasma filament. The results are cross-checked with numerical simulation, showing an excellent agreement and providing a complete picture of the physical process. Beyond particle acceleration, the concept bridges laser filamentation physics, advanced plasma photonics and compact accelerator technologies, offering a promising route towards sustainable, high-repetition-rate plasma-based facilities. |
| title | Experimental Demonstration of Beam-Driven Wakefield Acceleration in Laser-Plasma Filament |
| topic | Plasma Physics |
| url | https://arxiv.org/abs/2602.22841 |