Ultrafast characterization of plasma critical surface evolution in inertial confinement fusion experiments with chirped laser pulses

Abstract Laser-driven inertial confinement fusion (ICF) diagnostics play a crucial role in understanding the complex physical processes governing ICF and enabling ignition. During the ICF process, the interaction between the high-power laser and ablation material leads to the formation of a plasma critical surface, which reflects a significant portion of the driving laser, reducing the efficiency of laser energy conversion into implosive kinetic energy. Effective diagnostic methods for the critical surface remain elusive. In this work, we propose a novel optical diagnostic approach to investigate the plasma critical surface. This method has been experimentally validated, providing new insights into the critical surface morphology and dynamics. This advancement represents a significant step forward in ICF diagnostic capabilities, with the potential to inform strategies for enhancing the uniformity of the driving laser and target surface, ultimately improving the efficiency of converting laser energy into implosion kinetic energy and enabling ignition.

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Publication Details

Journal
High Power Laser Science and Engineering
Published
2025-01-01
DOI
https://doi.org/10.1017/hpl.2025.4
Citations
3
Primary Topic
Laser-Plasma Interactions and Diagnostics
Type
article
Field-Weighted Citation Impact
5.61

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article

Ultrafast characterization of plasma critical surface evolution in inertial confinement fusion experiments with chirped laser pulses

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High Power Laser Science and Engineering
Laser-Plasma Interactions and Diagnostics
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article

Ultrafast characterization of plasma critical surface evolution in inertial confinement fusion experiments with chirped laser pulses

Ailin Guo, Xiao Liang, Jun Yong Kang, Linjun Li, Rashid Ul Haq, Zhantao Lu, Meizhi Sun, Qingwei Yang, Dongjun Zhang, Ping Zhu, Xuejie Zhang, Guoli Zhang, Xue Han, Xinglong Xie, Haidong Zhu
article en
3 citations

Abstract

Abstract Laser-driven inertial confinement fusion (ICF) diagnostics play a crucial role in understanding the complex physical processes governing ICF and enabling ignition. During the ICF process, the interaction between the high-power laser and ablation material leads to the formation of a plasma critical surface, which reflects a significant portion of the driving laser, reducing the efficiency of laser energy conversion into implosive kinetic energy. Effective diagnostic methods for the critical surface remain elusive. In this work, we propose a novel optical diagnostic approach to investigate the plasma critical surface. This method has been experimentally validated, providing new insights into the critical surface morphology and dynamics. This advancement represents a significant step forward in ICF diagnostic capabilities, with the potential to inform strategies for enhancing the uniformity of the driving laser and target surface, ultimately improving the efficiency of converting laser energy into implosion kinetic energy and enabling ignition.

High Power Laser Science and EngineeringVol. 13
Chinese Academy of Sciences (CN), Shanghai Institute of Optics and Fine Mechanics (CN), University of Chinese Academy of Sciences (CN)
Natural Science Foundation of Shanghai, Johns Hopkins University, University of Cambridge, National Natural Science Foundation of China
Openalex Percentile: Top 6%
Laser-Plasma Interactions and Diagnostics
5.61
DOIOpen Access PDFOpenAlex
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