Effect of laser wavelength on growth of ablative Rayleigh–Taylor instability in inertial confinement fusion

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

doi:10.1063/5.0235138

Volume 10 Issue 2

Mar. 2025

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Article Navigation > Matter and Radiation at Extremes > 2025 > 10(2): 027403

Lu Zhantao, Xie Xinglong, Liang Xiao, Sun Meizhi, Zhu Ping, Zhang Xuejie, Li Linjun, Xue Hao, Zhang Guoli, Haq Rashid Ul, Zhang Dongjun, Zhu Jianqiang. Effect of laser wavelength on growth of ablative Rayleigh–Taylor instability in inertial confinement fusion[J]. Matter and Radiation at Extremes, 2025, 10(2): 027403. doi: 10.1063/5.0235138

Citation:

Lu Zhantao, Xie Xinglong, Liang Xiao, Sun Meizhi, Zhu Ping, Zhang Xuejie, Li Linjun, Xue Hao, Zhang Guoli, Haq Rashid Ul, Zhang Dongjun, Zhu Jianqiang. Effect of laser wavelength on growth of ablative Rayleigh–Taylor instability in inertial confinement fusion[J]. Matter and Radiation at Extremes, 2025, 10(2): 027403. doi: 10.1063/5.0235138

Citation:

Lu Zhantao, Xie Xinglong, Liang Xiao, Sun Meizhi, Zhu Ping, Zhang Xuejie, Li Linjun, Xue Hao, Zhang Guoli, Haq Rashid Ul, Zhang Dongjun, Zhu Jianqiang. Effect of laser wavelength on growth of ablative Rayleigh–Taylor instability in inertial confinement fusion[J]. Matter and Radiation at Extremes, 2025, 10(2): 027403. doi: 10.1063/5.0235138

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Effect of laser wavelength on growth of ablative Rayleigh–Taylor instability in inertial confinement fusion

doi: 10.1063/5.0235138

Lu Zhantao^{1, 2
,},
Xie Xinglong^{1, 2
,
,
,},
Liang Xiao^1
,,
Sun Meizhi^1
,,
Zhu Ping^1
,,
Zhang Xuejie^1
,,
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: 2024-08-26
Accepted Date: 2025-02-10

Available Online: 2025-03-01

Publish Date: 2025-03-01

Abstract

Abstract

The effect of drive laser wavelength on the growth of ablative Rayleigh–Taylor instability (ARTI) in inertial confinement fusion (ICF) is studied with two-dimensional numerical simulations. The results show that in the plasma acceleration phase, shorter wavelengths lead to more efficient coupling between the laser and the kinetic energy of the implosion fluid. Under the condition that the laser energy coupled to the implosion fluid is constant, the ARTI growth rate decreases as the laser wavelength moves toward the extreme ultraviolet band, reaching its minimum value near λ = 65 nm, and when the laser wavelength continuously moves toward the X-ray band, the ARTI growth rate increases rapidly. It is found that the results deviate from the theoretical ARTI growth rate. As the laser intensity benchmark increases, the position of the minimum ARTI growth rate shifts toward shorter wavelengths. As the initial sinusoidal perturbation wavenumber decreases, the position of the minimum ARTI growth rate shifts toward longer wavelengths. We believe that the conclusions drawn from the present simulations and analysis will help provide a better understanding of the ICF process and improve the theory of ARTI growth.

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

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