Pump with broadband probe experiments for single-shot measurements of plasma conditions and crossed-beam energy transfer
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arXiv
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| Auteurs principaux: | , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866912539121549312 |
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| author | Longman, A. Muir, R. Mittelberger, D. Grace, E. Goyon, C. Swadling, G. Kemp, G. Chapman, T. Maricle, S. Vanartsdalen, N. Linder, A. Dumbacher, T. Zoromski, K. Stuart, B. Albert, F. Heebner, J. Michel, P. |
| author_facet | Longman, A. Muir, R. Mittelberger, D. Grace, E. Goyon, C. Swadling, G. Kemp, G. Chapman, T. Maricle, S. Vanartsdalen, N. Linder, A. Dumbacher, T. Zoromski, K. Stuart, B. Albert, F. Heebner, J. Michel, P. |
| contents | A novel technique for measuring plasma conditions using monochromatic pump-broadband probe laser interactions has been experimentally demonstrated. Originally proposed in [J. Ludwig et al., Phys. Plasmas \textbf{26}, 113108 (2019)], this method utilizes crossed-beam energy transfer between the broadband probe and the pump, mediated by plasma ion acoustic waves. The complete energy transfer spectrum can be captured in a single shot, enabling the inference of plasma parameters such as density, electron and ion temperatures, and flow velocity. Compared to Thomson scattering, this technique offers signal enhancements typically larger than 9 orders of magnitude, significantly reducing the required probe laser intensity and facilitating interactions that are linear and measurements that are non-perturbative of the plasma. Furthermore, it provides a powerful tool for advancing studies of crossed-beam energy transfer under conditions relevant to inertial confinement fusion experiments. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_11156 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Pump with broadband probe experiments for single-shot measurements of plasma conditions and crossed-beam energy transfer Longman, A. Muir, R. Mittelberger, D. Grace, E. Goyon, C. Swadling, G. Kemp, G. Chapman, T. Maricle, S. Vanartsdalen, N. Linder, A. Dumbacher, T. Zoromski, K. Stuart, B. Albert, F. Heebner, J. Michel, P. Plasma Physics Applied Physics A novel technique for measuring plasma conditions using monochromatic pump-broadband probe laser interactions has been experimentally demonstrated. Originally proposed in [J. Ludwig et al., Phys. Plasmas \textbf{26}, 113108 (2019)], this method utilizes crossed-beam energy transfer between the broadband probe and the pump, mediated by plasma ion acoustic waves. The complete energy transfer spectrum can be captured in a single shot, enabling the inference of plasma parameters such as density, electron and ion temperatures, and flow velocity. Compared to Thomson scattering, this technique offers signal enhancements typically larger than 9 orders of magnitude, significantly reducing the required probe laser intensity and facilitating interactions that are linear and measurements that are non-perturbative of the plasma. Furthermore, it provides a powerful tool for advancing studies of crossed-beam energy transfer under conditions relevant to inertial confinement fusion experiments. |
| title | Pump with broadband probe experiments for single-shot measurements of plasma conditions and crossed-beam energy transfer |
| topic | Plasma Physics Applied Physics |
| url | https://arxiv.org/abs/2508.11156 |