Model of self-generated magnetic field generation from relativistic laser interaction with solid targets

Rui Yan(严睿), De-Bin Zou(邹德滨),Na Zhao(赵娜),Xiao-Hu Yang(杨晓虎), Xiang-Rui Jiang(蒋祥瑞),Li-Xiang Hu(胡理想), Xin-Rong Xu(徐新荣),Hong-Yu Zhou(周泓宇), Tong-Pu Yu(余同普),Hong-Bin Zhuo(卓红斌), Fu-Qiu Shao(邵福球),and Yan Yin(银燕)

中国物理B(2024)

引用 0|浏览11
暂无评分
摘要
Generation of self-generated annular magnetic fields at the rear side of a solid target driven by relativistic laser pulse is investigated by using theoretical analysis and particle-in-cell simulations. The spatial strength distribution of magnetic fields can be accurately predicted by calculating the net flow caused by the superposition of source flow and return flow of hot electrons. The theoretical model established shows good agreement with the simulation results, indicating that the magnetic-field strength scales positively to the temperature of hot electrons. This provides us a way to improve the magnetic-field generation by using a micro-structured plasma grating in front of the solid target. Compared with that for a common flat target, hot electrons can be effectively heated with the well-designed grating size, leading to a stronger magnetic field. The spatial distribution of magnetic fields can be modulated by optimizing the grating period and height as well as the incident angle of the laser pulse.
更多
查看译文
关键词
self-generated magnetic field,laser solid-target interaction,micro-structured plasma grating
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要