Optimization Design Scheme of Femtosecond Laser Induced Corona Discharge

被引：0
|
作者：
Du S. [1 ,2 ]
Zhu Z. [1 ,3 ]
Liu Y. [1 ,4 ]
Wang T. [1 ,2 ]
Li R. [1 ,2 ]
机构：
[1] State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai
[2] University of Chinese Academy of Sciences, Beijing
[3] College of Sciences, Shanghai University, Shanghai
[4] Department of Physics, Tongji University, Shanghai
来源：
Zhongguo Jiguang/Chinese Journal of Lasers | 2017年 / 44卷 / 06期
关键词：
Corona discharge; Electric field threshold; Femtosecond laser filament; Finite element calculation; Laser technique;
D O I：
10.3788/CJL201744.0601009
中图分类号：
学科分类号：
摘要：
An optimization design scheme is proposed for the femtosecond laser induced corona discharge experiment. The differences between spherical electrode and traditional cone electrode are investigated by numerical analysis. The distribution of space electric field around femtosecond filament is demonstrated, and the thresholds of corona electric field around femtosecond laser filament tip under the two situations are compared. The experimental phenomena of corona discharge of the two electrodes induced by femtosecond laser are compared. The simulation and experiment results show that the new designed spherical electrode dramatically improves the coupling efficiency between the femtosecond laser filament and the external electric field and the efficiency of corona discharge induced by femtosecond laser. © 2017, Chinese Lasers Press. All right reserved.
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  • [1] Hu X., Zhong F., Deng J., Et al., Ultra-short intense laser pulse propagating in atmosphere: Behavior of self-focusing, Acta Optica Sinica, 21, 6, pp. 641-646, (2001)
  • [2] Braun A., Korn G., Liu X., Et al., Self-channeling of high-peak-power femtosecond laser pulses in air, Optics Letters, 20, 1, pp. 73-75, (1995)
  • [3] Akozbek N., Bowden C.M., Talebpour A., Et al., Femtosecond pulse propagation in air: Variational analysis, Physical Review E, 61, 4, pp. 4540-4549, (2000)
  • [4] Chin S.L., Hosseini S.A., Liu W., Et al., The propagation of powerful femtosecond laser pulses in optical media: Physics, applications, and new challenges, Canadian Journal of Physics, 83, 9, pp. 863-905, (2005)
  • [5] Ju J.J., Liu J.S., Wang C., Et al., Laser-filamentation-induced condensation and snow formation in a cloud chamber, Optics Letters, 37, 7, pp. 1214-1216, (2012)
  • [6] Chen N., Liu Y., Du S., Et al., Research progress in applications of nanosecond and femto second laser-induced breakdown spectroscopy, Laser & Optoelectronics Progress, 53, 5, (2016)
  • [7] Fu J., Guo X., Zhao T., Et al., Spectral time evolution behavior of laser induced steel target plasma, Chinese J Lasers, 44, 3, (2017)
  • [8] Theberge F., Liu W.W., Simard P.T., Et al., Plasma density inside a femtosecond laser filament in air: Strong dependence on external focusing, Physical Review E, 74, 3, (2006)
  • [9] Ladouceur H.D., Baronavski A.P., Lohrmann D., Et al., Electrical conductivity of a femtosecond laser generated plasma channel in air, Optics Communications, 189, 1, pp. 107-111, (2001)
  • [10] Greig J.R., Koopman D.W., Fernsler R.F., Et al., Electrical discharges guided by pulsed CO<sub>2</sub>-laser radiation, Physical Review Letters, 41, 3, pp. 174-177, (1978)
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