Observation of Zeeman splitting effect in a laser-driven coil

Baojun Zhu; Zhe Zhang; Chang Liu; Dawei Yuan; Weiman Jiang; Huigang Wei; Fang Li; Yihang Zhang; Bo Han; Lei Cheng; Shangqing Li; Jiayong Zhong; Xiaoxia Yuan; Bowei Tong; Wei Sun; Zhiheng Fang; Chen Wang; Zhiyong Xie; Neng Hua; Rong Wu; Zhanfeng Qiao; Guiyun Liang; Baoqiang Zhu; Jianqiang Zhu; Shinsuke Fujioka; Yutong Li

doi:10.1063/5.0060954

Journals >Matter and Radiation at Extremes >Volume 7 >Issue 2 >Page 024402 > Article

Matter and Radiation at Extremes
Vol. 7, Issue 2, 024402 (2022)

Observation of Zeeman splitting effect in a laser-driven coil

Baojun Zhu^1,2, Zhe Zhang^1,3, Chang Liu⁴, Dawei Yuan⁵..., Weiman Jiang¹, Huigang Wei⁵, Fang Li¹, Yihang Zhang¹, Bo Han⁶, Lei Cheng¹, Shangqing Li¹, Jiayong Zhong⁶, Xiaoxia Yuan⁷, Bowei Tong⁶, Wei Sun⁶, Zhiheng Fang⁸, Chen Wang⁸, Zhiyong Xie⁸, Neng Hua⁹, Rong Wu⁹, Zhanfeng Qiao⁹, Guiyun Liang⁵, Baoqiang Zhu⁹, Jianqiang Zhu⁹, Shinsuke Fujioka² and Yutong Li^0,1,3|Show fewer author(s)

Author Affiliations

⁰School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China

¹Beijing National Laboratory of Condensed Matter Physics, Institute of Physics, CAS, Beijing 100190, China

²Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka, Japan

³Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, China

⁴Department of Advanced Photon Research, Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology, 619-0215 Kyoto, Japan

⁵Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, China

⁶Department of Astronomy, Beijing Normal University, Beijing 100875, China

⁷Center for Advanced Material Diagnostic Technology, College of Engineering Physics, Shenzhen Technology University, Shenzhen 518118, China

⁸Shanghai Institute of Laser Plasma, Shanghai 201800, China

⁹National Laboratory on High Power Laser and Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China

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DOI: 10.1063/5.0060954 Cite this Article

Baojun Zhu, Zhe Zhang, Chang Liu, Dawei Yuan, Weiman Jiang, Huigang Wei, Fang Li, Yihang Zhang, Bo Han, Lei Cheng, Shangqing Li, Jiayong Zhong, Xiaoxia Yuan, Bowei Tong, Wei Sun, Zhiheng Fang, Chen Wang, Zhiyong Xie, Neng Hua, Rong Wu, Zhanfeng Qiao, Guiyun Liang, Baoqiang Zhu, Jianqiang Zhu, Shinsuke Fujioka, Yutong Li. Observation of Zeeman splitting effect in a laser-driven coil[J]. Matter and Radiation at Extremes, 2022, 7(2): 024402 Copy Citation Text

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Abstract

The Zeeman splitting effect is observed in a strong magnetic field generated by a laser-driven coil. The expanding plasma from the coil wire surface is concentrated at the coil center and interacts with the simultaneously generated magnetic field. The Cu I spectral lines at wavelengths of 510.5541, 515.3235, and 521.8202 nm are detected and analyzed. The splittings of spectral lines are used to estimate the magnetic field strength at the coil center as ∼31.4 ± 15.7 T at a laser intensity of ∼5.6 × 10¹⁵ W/cm², which agrees well with measurements using a B-dot probe. Some other plasma parameters of the central plasma disk are also studied. The temperature is evaluated from the Cu I spectral line intensity ratio, while the electron density is estimated from the Stark broadening effect.