激光与光电子学进展, 2021, 58 (7): 0735001, 网络出版: 2021-04-25
激光辅助水中脉冲放电生成等离子体的数值模拟 下载: 1012次
Numerical Simulation of Plasma Generated by Laser-Assisted Pulsed Discharge in Water
图 & 表
图 1. 激光注入水中脉冲放电实验装置
Fig. 1. Experimental setup of pulse discharge when laser is injected in water
图 2. 激光与电场相互作用区域示意图
Fig. 2. Schematic diagram of interaction between laser and electric field
图 3. 注入激光能量为50 mJ时等离子体通道内电子密度的变化情况。(a) 0 ns;(b) 5 ns;(c) 10 ns
Fig. 3. Changes of electron densities in plasma channel for injected laser energy of 50 mJ. (a) 0 ns;(b) 5 ns;(c) 10 ns
图 4. 注入激光能量为50 mJ时等离子体通道内电子密度沿 轴的分布
Fig. 4. Distribution of electron density at z axis in plasma channel for injected laser energy of 50 mJ
图 5. 注入激光能量为80 mJ时等离子体通道内电子密度变化情况。(a) 0 ns;(b) 5 ns;(c) 10 ns
Fig. 5. Change of electron density in plasma channel for injected laser energy of 80 mJ. (a) 0 ns;(b) 5 ns;(c) 10 ns
图 6. 激光注入等离子体通道过程中电场强度的变化情况。(a) 0 ns;(b) 5 ns;(c) 10 ns
Fig. 6. Distributions of electric field intensity in laser leading-in plasma channel. (a) 0 ns;(b) 5 ns;(c) 10 ns
图 7. 光斑大小对等离子体通道中电子密度的影响。(a) 0.1 mm;(b) 0.2 mm;(c) 0.3 mm
Fig. 7. Effect of spot size on electron density in plasma channel. (a) 0.1 mm; (b) 0.2 mm; (c) 0.3 mm
图 8. 光斑大小对等离子体通道电子密度( 轴)的影响
Fig. 8. Effect of spot size on electron density in plasma channel (z axis)
表 1光斑直径对电子密度与宽度的影响
Table1. Effect of spot diameter on electron density and width
|
钱杨, 冯音琦, 黄民双, 许友文. 激光辅助水中脉冲放电生成等离子体的数值模拟[J]. 激光与光电子学进展, 2021, 58(7): 0735001. Yang Qian, Yinqi Feng, Minshuang Huang, Youwen Xu. Numerical Simulation of Plasma Generated by Laser-Assisted Pulsed Discharge in Water[J]. Laser & Optoelectronics Progress, 2021, 58(7): 0735001.