https://doi.org/10.1140/epjd/s10053-024-00950-3
Regular Article - Plasma Physics
Study on the coupling and ion acceleration between ultraintense laser and multilayer solid targets
Department of Nuclear Physics, China Institute of Atomic Energy, P. O. Box 275(7), 102413, Beijing, China
Received:
17
November
2024
Accepted:
29
December
2024
Published online:
15
January
2025
This study focuses on optimizing beam driving modes to enhance laser-target coupling efficiency and improve particle quality in laser-driven ion acceleration. The aim is to increase proton and ion beam energy. Two-dimensional particle-in-cell simulations are conducted to investigate the proton beam generated by a Petawatt laser-driven multilayer target. The results indicate that optimal space overlap between the laser and targets improves energy coupling efficiency. Numerical simulation results indicate that the overlap of two laser pulses in front of the target, specifically at the same focal point, results in the generation of higher-energy ion beams. This result is primarily attributed to the enhanced longitudinal electric field under such conditions, which leads to increased energies of protons and ions. By adjusting the longitudinal size of the CH layer, a high-quality proton beam with a maximum cut-off energy of approximately 290 MeV and a small energy spread of 5.2 and 14.7
is achieved
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© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2025
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.