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

Yadong Xia; Feng Zhang; Hongbo Cai; Weimin Zhou; Chao Tian; Bo Zhang; Dongxiao Liu; Tao Yi; Yilin Xu; Feng Wang; Tingshuai Li; Shaoping Zhu

doi:10.1063/1.5114663

Journals >Matter and Radiation at Extremes >Volume 5 >Issue 1 >Page 017401 > Article

Matter and Radiation at Extremes
Vol. 5, Issue 1, 017401 (2020)

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

Yadong Xia^1、2、*, Feng Zhang³, Hongbo Cai^4、5、6, Weimin Zhou³, Chao Tian³, Bo Zhang³, Dongxiao Liu³, Tao Yi², Yilin Xu¹, Feng Wang², Tingshuai Li¹, and Shaoping Zhu^3、4、7

Author Affiliations

¹School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, People’s Republic of China

²Laser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, People’s Republic of China

³Science and Technology on Plasma Physics Laboratory, Laser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, People’s Republic of China

⁴Institute of Applied Physics and Computational Mathematics, Beijing, 100094, People’s Republic of China

⁵HEDPS, Center for Applied Physics and Technology, Peking University, Beijing 100871, People’s Republic of China

⁶IFSA Collaborative Innovation Center, Shanghai Jiao Tong University, Shanghai 200240, People’s Republic of China

⁷Graduate School, China Academy of Engineering Physics, P.O. Box 2101, Beijing 100088, People’s Republic of China

show less

DOI: 10.1063/1.5114663 Cite this Article

Yadong Xia, Feng Zhang, Hongbo Cai, Weimin Zhou, Chao Tian, Bo Zhang, Dongxiao Liu, Tao Yi, Yilin Xu, Feng Wang, Tingshuai Li, Shaoping Zhu. Analysis of electromagnetic pulses generation from laser coupling with polymer targets: Effect of metal content in target[J]. Matter and Radiation at Extremes, 2020, 5(1): 017401 Copy Citation Text

EndNote(RIS)

BibTex

Plain Text

show less

Abstract

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 of EMP generation and ejection of hot electrons during laser coupling with targets.