首页> 中文期刊> 《极端条件下的物质与辐射(英文)》 >Analysis of electromagnetic pulses generation from laser coupling with polymer targets: Effect of metal content in target

Analysis of electromagnetic pulses generation from laser coupling with polymer targets: Effect of metal content in target

         

摘要

Powerful lasers interacting with solid targets can generate intense electromagnetic pulses(EMPs).In this study,EMPs produced by a pulsed laser(1 ps,100 J)shooting at CH targets doped with different titanium(Ti)contents at the XG-III laser facility are measured and analyzed.The results demonstrate that the intensity of EMPs first increases with Ti doping content from 1%to 7%and then decreases.The electron spectra show that EMP emission is closely related to the hot electrons ejected from the target surface,which is confirmed by an analysis based on the target–holder–ground equivalent antenna model.The conclusions of this study provide a new approach to achieve tunable EMP radiation by adjusting the metal content of solid targets,and will also help in understanding the mechanism ofEMPgeneration and ejection of hot electrons during laser coupling with targets.

著录项

  • 来源
  • 作者单位

    School of Materials and Energy;

    University of Electronic Science and Technology of China;

    Chengdu 611731;

    People’s Republic of China;

    Laser Fusion Research Center;

    China Academy of Engineering Physics;

    Mianyang 621900;

    People’s Republic of China;

    Science and Technology on Plasma Physics Laboratory;

    Laser Fusion Research Center;

    China Academy of Engineering Physics;

    Mianyang 621900;

    People’s Republic of China;

    Institute of Applied Physics and Computational Mathematics;

    Beijing;

    100094;

    People’s Republic of China;

    HEDPS;

    Center for Applied Physics and Technology;

    Peking University;

    Beijing 100871;

    People’s Republic of China;

    IFSA Collaborative Innovation Center;

    Shanghai Jiao Tong University;

    Shanghai 200240;

    People’s Republic of China;

    Graduate School;

    China Academy of Engineering Physics;

    P.O.Box 2101;

    Beijing 100088;

    People’s Republic of China;

  • 原文格式 PDF
  • 正文语种 chi
  • 中图分类 光电子技术、激光技术;
  • 关键词

    antenna; coupling; titanium;

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