Suppression of ablative Rayleigh–Taylor instability by spatially modulated laser in inertial confinement fusion

Lu Zhantao; Xie Xinglong; Liang Xiao; Sun Meizhi; Zhu Ping; Zhang Xuejie; Xing Chunqing; Li Linjun; Xue Hao; Zhang Guoli; Haq Rashid Ul; Zhang Dongjun; Zhu Jianqiang

doi:10.1063/5.0270160

Volume 11 Issue 1

Jan. 2026

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Article Navigation > Matter and Radiation at Extremes > 2026 > 11(1): 017401

Lu Zhantao, Xie Xinglong, Liang Xiao, Sun Meizhi, Zhu Ping, Zhang Xuejie, Xing Chunqing, Li Linjun, Xue Hao, Zhang Guoli, Haq Rashid Ul, Zhang Dongjun, Zhu Jianqiang. Suppression of ablative Rayleigh–Taylor instability by spatially modulated laser in inertial confinement fusion[J]. Matter and Radiation at Extremes, 2026, 11(1): 017401. doi: 10.1063/5.0270160

Citation:

Lu Zhantao, Xie Xinglong, Liang Xiao, Sun Meizhi, Zhu Ping, Zhang Xuejie, Xing Chunqing, Li Linjun, Xue Hao, Zhang Guoli, Haq Rashid Ul, Zhang Dongjun, Zhu Jianqiang. Suppression of ablative Rayleigh–Taylor instability by spatially modulated laser in inertial confinement fusion[J]. Matter and Radiation at Extremes, 2026, 11(1): 017401. doi: 10.1063/5.0270160

Citation:

Lu Zhantao, Xie Xinglong, Liang Xiao, Sun Meizhi, Zhu Ping, Zhang Xuejie, Xing Chunqing, Li Linjun, Xue Hao, Zhang Guoli, Haq Rashid Ul, Zhang Dongjun, Zhu Jianqiang. Suppression of ablative Rayleigh–Taylor instability by spatially modulated laser in inertial confinement fusion[J]. Matter and Radiation at Extremes, 2026, 11(1): 017401. doi: 10.1063/5.0270160

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Suppression of ablative Rayleigh–Taylor instability by spatially modulated laser in inertial confinement fusion

doi: 10.1063/5.0270160

Lu Zhantao^{1, 2
,},
Xie Xinglong^{1, 2
,
,
,},
Liang Xiao^1
,,
Sun Meizhi^1
,,
Zhu Ping^1
,,
Zhang Xuejie^1
,,
Xing Chunqing¹,
Li Linjun^{1, 2},
Xue Hao^{1, 2
,},
Zhang Guoli^{1, 2},
Haq Rashid Ul^{1, 2
,},
Zhang Dongjun^1
,,
Zhu Jianqiang^{1, 2
,
,}

1.
National Laboratory on High Power Laser and Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, People’s Republic of China
2.
Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, No. 19(A), Yuquan Road, Shijingshan, Beijing 100049, People’s Republic of China

More Information

Corresponding author: a)Authors to whom correspondence should be addressed: xiexl329@siom.ac.cn and jqzhu@siom.ac.cn
Received Date: 2025-03-10
Accepted Date: 2025-10-10

Available Online: 2026-01-01

Publish Date: 2026-01-01

Abstract

Abstract

The suppression of ablative Rayleigh–Taylor instability (ARTI) by a spatially modulated laser in inertial confinement fusion (ICF) is studied through numerical simulations. The results show that in the acceleration phase of ICF implosion, the growth of ARTI can be suppressed by using a short-wavelength spatially modulated laser. The ARTI growth rate decreases as the wavelength of the spatially modulated laser decreases, and ARTI is completely suppressed after a certain wavelength has been reached. A spatially uniform laser is introduced to keep the state of motion of the implosion fluid consistent, and it is found that the proportion of the spatially modulated laser required for complete suppression of ARTI decreases as the wavelength continues to decrease. We also optimize the spatial intensity distribution of the spatially modulated laser. In addition, as the duration of the spatially modulated laser decreases, the proportion required for completely suppressing ARTI increases, but the required energy decreases. When the perturbation wavenumber decreases, the wavelength of the spatially modulated laser required for complete suppression of ARTI becomes longer. In the case of multimode perturbation, ARTI can also be significantly suppressed by a spatially modulated laser, and the perturbation amplitude can be reduced to less than 10% of that without a spatially modulated laser. We believe that the conclusions drawn from our simulations can provide the basis for new approaches to control ARTI in ICF.

Conflict of Interest
The authors have no conflicts to disclose.
Author Contributions
Zhantao Lu: Conceptualization (equal); Formal analysis (lead); Investigation (equal); Methodology (lead); Visualization (lead); Writing – original draft (lead). Xinglong Xie: Conceptualization (equal); Funding acquisition (lead); Project administration (lead); Supervision (equal); Writing – review & editing (lead). Xiao Liang: Data curation (equal). Meizhi Sun: Data curation (equal). Ping Zhu: Investigation (equal). Xuejie Zhang: Investigation (equal). Chunqing Xing: Investigation (equal). Linjun Li: Investigation (equal). Hao Xue: Investigation (equal). Guoli Zhang: Investigation (equal). Rashid Ul Haq: Investigation (equal). Dongjun Zhang: Investigation (equal). Jianqiang Zhu: Supervision (lead).
The data that support the findings of this study are available from the corresponding authors upon reasonable request.

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