|
|||||
|
|
Optical diagnostics of femtosecond laser plasmas |
|
| Authors: | LI Yutong ZHANG Jie CHEN Liming XIA Jiangfan TENG Hao ZHAO Lizeng LIN Jingquan Li Yingjun WEI Zhiyi WANG Long JIANG Wenmian |
| Institution: | 1. Institute of Physics, Chinese Academy of Sciences,；Research Center of Laser Fusion Academy of Engineering Physics, 2. Institute of Physics, Chinese Academy of Sciences, 3. Research Center of Laser Fusion Academy of Engineering Physics, |
| Abstract: | Optical diagnostics of evolution of plasmas produced by ultrashort laser pulses is carried out using a femtosecond probing beam. The time sequence of plasma shadowgrams and interferograms are obtained. The filamentation instability in high-density region induces the local density modification. Large-scale toroidal magnetic fields confine plasma expansion in the transverse direction, resulting in the formation of a plasma jet. The plasma expansion along the target normal direction is found to scale as t1/2. |
| Keywords: | Femtosecond laser plasma Optical diagnostic Electron density gradient |
| 本文献已被 万方数据 SpringerLink 等数据库收录！ | |