Experimental research on stimulated Raman scattering under a hybrid-drive ignition path

Pan Kaiqiang; Liu Zhanjun; Qin Xuelong; Li Jiwei; Gong Tao; Wang Qing; Yan Ji; Li Zhichao; Yang Dong; Liu Yonggang; He Xiantu

doi:10.1063/5.0251754

Volume 10 Issue 5

Sep. 2025

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Pan Kaiqiang, Liu Zhanjun, Qin Xuelong, Li Jiwei, Gong Tao, Wang Qing, Yan Ji, Li Zhichao, Yang Dong, Liu Yonggang, He Xiantu. Experimental research on stimulated Raman scattering under a hybrid-drive ignition path[J]. Matter and Radiation at Extremes, 2025, 10(5): 057401. doi: 10.1063/5.0251754

Citation:

Pan Kaiqiang, Liu Zhanjun, Qin Xuelong, Li Jiwei, Gong Tao, Wang Qing, Yan Ji, Li Zhichao, Yang Dong, Liu Yonggang, He Xiantu. Experimental research on stimulated Raman scattering under a hybrid-drive ignition path[J]. Matter and Radiation at Extremes, 2025, 10(5): 057401. doi: 10.1063/5.0251754

Citation:

Pan Kaiqiang, Liu Zhanjun, Qin Xuelong, Li Jiwei, Gong Tao, Wang Qing, Yan Ji, Li Zhichao, Yang Dong, Liu Yonggang, He Xiantu. Experimental research on stimulated Raman scattering under a hybrid-drive ignition path[J]. Matter and Radiation at Extremes, 2025, 10(5): 057401. doi: 10.1063/5.0251754

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Experimental research on stimulated Raman scattering under a hybrid-drive ignition path

doi: 10.1063/5.0251754

Pan Kaiqiang¹,
Liu Zhanjun^2
,,
Qin Xuelong^1
,,
Li Jiwei²,
Gong Tao^1
,,
Wang Qing²,
Yan Ji^{1
,
,},
Li Zhichao¹,
Yang Dong^1
,,
Liu Yonggang¹,
He Xiantu^{2, 3
,}

1.
Laser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, China
2.
Institute of Applied Physics and Computational Mathematics, Beijing 100088, China
3.
Center for Applied Physics and Technology, Peking University, Beijing 100871, China

More Information

Corresponding author: a)Author to whom correspondence should be addressed: lucifer@mail.ustc.edu.cn
Received Date: 2024-12-04
Accepted Date: 2025-06-16

Available Online: 2025-11-28

Publish Date: 2025-09-01

Abstract

Abstract

Stimulated Raman scattering (SRS) under a new ignition path that combines the advantages of direct-drive (DD) and indirect-drive (ID) schemes is investigated experimentally at the Shenguang-100 kJ facility. The results show that collective SRS in the plasma produced by ablating a polyimide film is detected for the ID beams, but is suppressed by adding a toe before the main pulse of the ID beams. The toe also strongly influences SRS of both the ID and DD beams excited in the plasma generated in the hohlraum. When a toe is used, the SRS spectra of the DD beams show that SRS tends to be excited in lower plasma density, which will result in a lower risk of super-hot electrons. Measurements of hot electrons support this conclusion. This research will help us produce a better pulse design for this new ignition path.

Conflict of Interest
The authors have no conflicts to disclose.
K.P. designed the experiment, analyzed the data, and wrote the initial paper. Other authors helped to perform the experiment and revised the manuscript.
Author Contributions
Kaiqiang Pan: Data curation (equal); Funding acquisition (equal); Investigation (equal); Methodology (equal); Validation (equal); Writing – original draft (equal); Writing – review & editing (equal). Zhanjun Liu: Data curation (supporting); Writing – review & editing (equal). Xuelong Qin: Writing – review & editing (equal). Jiwei Li: Data curation (supporting); Writing – review & editing (equal). Tao Gong: Funding acquisition (equal); Supervision (equal); Writing – review & editing (equal). Qing Wang: Writing – review & editing (equal). Ji Yan: Supervision (equal); Writing – review & editing (equal). Zhichao Li: Supervision (equal); Writing – review & editing (equal). Dong Yang: Funding acquisition (equal); Supervision (equal); Writing – review & editing (equal). Yonggang Liu: Data curation (supporting). Xiantu He: Conceptualization (equal); Supervision (equal); Writing – review & editing (equal).
The data support our findings in this study is available from both the first author and the corresponding author upon reasonable request.

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References(31)

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