首页|Electromagnetic pulses produced by a picosecond laser interacting with solid targets

Electromagnetic pulses produced by a picosecond laser interacting with solid targets

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A high-power laser ablating solid targets induces giant electromagnetic pulses(EMPs),which are intimately pertinent to laser parameters,such as energy and pulse width.In this study,we reveal the features of EMPs generated from a picosecond(ps)laser irradiating solid targets at the SG-Ⅱ picosecond petawatt(PSPW)laser facility.The laser energy and pulse,as well as target material and thickness,show determinative effects on the EMPs'amplitude.More intense EMPs are detected behind targets compared to those at the other three positions,and the EMP amplitude decreases from 90.09 kV/m to 17.8 kV/m with the gold target thickness increasing from 10 μm to 20 μm,which is suppressed when the laser pulse width is enlarged.The results are expected to provide more insight into EMPs produced by ps lasers coupling with targets and lay the foundation for an effective EMP shielding design in high-power laser infrastructures.

laserelectromagnetic pulsetargetproton

牛爱慧、康宁、许国潇、谢佳节、滕建、刘会亚、孙明营、李廷帅

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School of Materials and Energy,University of Electronic Science and Technology of China,Chengdu 611731,China

Key Laboratory on High Power Laser and Physics,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China

Collaborative Innovation Center of IFSA,Shanghai Jiao Tong University,Shanghai 200240,China

University of Chinese Academy of Sciences,Beijing 100049,China

Science and Technology on Plasma Physics Laboratory,Research Center of Laser Fusion,China Academy of Engineering Physics,Mianyang 621900,China

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中国科学院战略规划重点项目program of Science and Technology on Plasma Physics Laboratory,China Academy of Engineering Physics

XDA250202056142A04220108

2024

10.1088/1674-1056/ad1a95

中国物理B(英文版)
中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI
影响因子：0.995
ISSN：1674-1056
年,卷(期)：2024.33(5)
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