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.

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;Cuiyun Liang;Baoqiang Zhu;Jianqiang Zhu;Shinsuke Fujioka;Yutong Li

Beijing National Laboratory of Condensed Matter Physics,Institute of Physics,CAS,Beijing 100190,China;Institute of Laser Engineering,Osaka University,2-6 Yamada-oka,Suita,Osaka,Japan;Songshan Lake Materials Laboratory,Dongguan,Guangdong 523808,China;Department of Advanced Photon Research,Kansai Photon Science Institute,National Institutes for Quantum and Radiological Science and Technology,619-0215 Kyoto,Japan;Key Laboratory of Optical Astronomy,National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100101,China;Department of Astronomy,Beijing Normal University,Beijing 100875,China;Center for Advanced Material Diagnostic Technology,College of Engineering Physics,Shenzhen Technology University,Shenzhen 518118,China;Shanghai Institute of Laser Plasma,Shanghai 201800,China;National Laboratory on High Power Laser and Physics,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China;School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100049,China

极端条件下的物质与辐射（英文）

[1]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;Cuiyun Liang;Baoqiang Zhu;Jianqiang Zhu;Shinsuke Fujioka;Yutong Li-.Observation of Zeeman splitting effect in a laser-driven coil)[J].极端条件下的物质与辐射（英文）,2022(02):18-24

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