Optimizing laser coupling, matter heating, and particle acceleration from solids using multiplexed ultraintense lasers
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| Autores principales: | , , , , , , , , , , , , , , , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2022
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| _version_ | 1866916134363594752 |
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| author | Yao, Weipeng Nakatsutsumi, Motoaki Buffechoux, Sébastien Antici, Patrizio Borghesi, Macro Ciardi, Andrea Chen, Sophia N. d'Humières, Emmanuel Gremillet, Laurent Heathcote, Robert Horný, Vojtěch McKenna, Paul Quinn, Mark N. Romagnani, Lorenzo Royle, Ryan Sarri, Gianluca Sentoku, Yasuhiko Schlenvoigt, Hans-Peter Toncian, Toma Tresca, Olivier Vassura, Laura Willi, Oswald Fuchs, Julien |
| author_facet | Yao, Weipeng Nakatsutsumi, Motoaki Buffechoux, Sébastien Antici, Patrizio Borghesi, Macro Ciardi, Andrea Chen, Sophia N. d'Humières, Emmanuel Gremillet, Laurent Heathcote, Robert Horný, Vojtěch McKenna, Paul Quinn, Mark N. Romagnani, Lorenzo Royle, Ryan Sarri, Gianluca Sentoku, Yasuhiko Schlenvoigt, Hans-Peter Toncian, Toma Tresca, Olivier Vassura, Laura Willi, Oswald Fuchs, Julien |
| contents | Realizing the full potential of ultrahigh-intensity lasers for particle and radiation generation will require multi-beam arrangements due to technology limitations. Here, we investigate how to optimize their coupling with solid targets. Experimentally, we show that overlapping two intense lasers in a mirror-like configuration onto a solid with a large preplasma can greatly improve the generation of hot electrons at the target front and ion acceleration at the target backside. The underlying mechanisms are analyzed through multidimensional particle-in-cell simulations, revealing that the self-induced magnetic fields driven by the two laser beams at the target front are susceptible to reconnection, which is one possible mechanism to boost electron energization. In addition, the resistive magnetic field generated during the transport of the hot electrons in the target bulk tends to improve their collimation. Our simulations also indicate that such effects can be further enhanced by overlapping more than two laser beams. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2208_06272 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Optimizing laser coupling, matter heating, and particle acceleration from solids using multiplexed ultraintense lasers Yao, Weipeng Nakatsutsumi, Motoaki Buffechoux, Sébastien Antici, Patrizio Borghesi, Macro Ciardi, Andrea Chen, Sophia N. d'Humières, Emmanuel Gremillet, Laurent Heathcote, Robert Horný, Vojtěch McKenna, Paul Quinn, Mark N. Romagnani, Lorenzo Royle, Ryan Sarri, Gianluca Sentoku, Yasuhiko Schlenvoigt, Hans-Peter Toncian, Toma Tresca, Olivier Vassura, Laura Willi, Oswald Fuchs, Julien Plasma Physics Realizing the full potential of ultrahigh-intensity lasers for particle and radiation generation will require multi-beam arrangements due to technology limitations. Here, we investigate how to optimize their coupling with solid targets. Experimentally, we show that overlapping two intense lasers in a mirror-like configuration onto a solid with a large preplasma can greatly improve the generation of hot electrons at the target front and ion acceleration at the target backside. The underlying mechanisms are analyzed through multidimensional particle-in-cell simulations, revealing that the self-induced magnetic fields driven by the two laser beams at the target front are susceptible to reconnection, which is one possible mechanism to boost electron energization. In addition, the resistive magnetic field generated during the transport of the hot electrons in the target bulk tends to improve their collimation. Our simulations also indicate that such effects can be further enhanced by overlapping more than two laser beams. |
| title | Optimizing laser coupling, matter heating, and particle acceleration from solids using multiplexed ultraintense lasers |
| topic | Plasma Physics |
| url | https://arxiv.org/abs/2208.06272 |