中国物理B ›› 2024, Vol. 33 ›› Issue (5): 54205-054205.doi: 10.1088/1674-1056/ad1a95
Electromagnetic pulses produced by a picosecond laser interacting with solid targets
Ai-Hui Niu(牛爱慧)1,†, Ning Kang(康宁)2,3,†,‡, Guo-Xiao Xu(许国潇)2,4, Jia-Jie Xie(谢佳节)1, Jian Teng(滕建)5, Hui-Ya Liu(刘会亚)2,3, Ming-Ying Sun(孙明营)2,3, and Ting-Shuai Li(李廷帅)1,§
- 1 School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China;
2 Key Laboratory on High Power Laser and Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China;
3 Collaborative Innovation Center of IFSA, Shanghai Jiao Tong University, Shanghai 200240, China;
4 University of Chinese Academy of Sciences, Beijing 100049, China;
5 Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China
Electromagnetic pulses produced by a picosecond laser interacting with solid targets
Ai-Hui Niu(牛爱慧)1,†, Ning Kang(康宁)2,3,†,‡, Guo-Xiao Xu(许国潇)2,4, Jia-Jie Xie(谢佳节)1, Jian Teng(滕建)5, Hui-Ya Liu(刘会亚)2,3, Ming-Ying Sun(孙明营)2,3, and Ting-Shuai Li(李廷帅)1,§
- 1 School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China;
2 Key Laboratory on High Power Laser and Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China;
3 Collaborative Innovation Center of IFSA, Shanghai Jiao Tong University, Shanghai 200240, China;
4 University of Chinese Academy of Sciences, Beijing 100049, China;
5 Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China
摘要： 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.
中图分类号: (Electromagnetic (nonlaser) radiation interactions with plasma)
- 52.40.Db