Optimized matching conditions for self-guided laser wakefield accelerators
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arXiv
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| Format: | Preprint |
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2025
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| author | Valenta, P. Miller, K. G. Russell, B. K. Lamač, M. Jech, M. Grittani, G. M. Bulanov, S. V. |
| author_facet | Valenta, P. Miller, K. G. Russell, B. K. Lamač, M. Jech, M. Grittani, G. M. Bulanov, S. V. |
| contents | We revisit the matching conditions for self-guided laser pulse propagation in plasma and refine their formulation to maximize the energy of electrons produced via laser wakefield acceleration. Bayesian optimization, combined with particle-in-cell simulations carried out in a quasi-three-dimensional geometry and a Lorentz-boosted frame, is employed. The optimization identifies the maximum electron energy that a self-guided laser wakefield accelerator, driven by a laser of a given energy, can produce, together with the corresponding acceleration distance. Our results further demonstrate that electrons with energies close to the maximum value can be obtained across a relatively wide range of input parameters and without the need for their precise tuning. This provides substantial flexibility for experimental implementation and significantly relaxes the operational constraints associated with self-guided laser wakefield accelerators. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_10728 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Optimized matching conditions for self-guided laser wakefield accelerators Valenta, P. Miller, K. G. Russell, B. K. Lamač, M. Jech, M. Grittani, G. M. Bulanov, S. V. Plasma Physics Accelerator Physics Computational Physics We revisit the matching conditions for self-guided laser pulse propagation in plasma and refine their formulation to maximize the energy of electrons produced via laser wakefield acceleration. Bayesian optimization, combined with particle-in-cell simulations carried out in a quasi-three-dimensional geometry and a Lorentz-boosted frame, is employed. The optimization identifies the maximum electron energy that a self-guided laser wakefield accelerator, driven by a laser of a given energy, can produce, together with the corresponding acceleration distance. Our results further demonstrate that electrons with energies close to the maximum value can be obtained across a relatively wide range of input parameters and without the need for their precise tuning. This provides substantial flexibility for experimental implementation and significantly relaxes the operational constraints associated with self-guided laser wakefield accelerators. |
| title | Optimized matching conditions for self-guided laser wakefield accelerators |
| topic | Plasma Physics Accelerator Physics Computational Physics |
| url | https://arxiv.org/abs/2512.10728 |