Plume splitting and rebounding in a high-intensity CO2 laser induced air plasma

被引：21
作者：
Chen, Anmin [1 ]
Jiang, Yuanfei [1 ]
Liu, Hang [1 ]
Jin, Mingxing [1 ]
Ding, Dajun [1 ]
机构：
[1] Jilin Univ, Inst Atom & Mol Phys, Changchun 130012, Peoples R China
来源：
PHYSICS OF PLASMAS | 2012年 / 19卷 / 07期
基金：
中国国家自然科学基金;
关键词：
LASER-ABLATION; TEMPERATURE; EVOLUTION; DENSITY;
D O I：
10.1063/1.4737165
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
The dynamics of plasma plume formed by high-intensity CO2 laser induced breakdown of air at atmospheric pressure is investigated. The laser wavelength is 10.6 mu m. Measurements were made using 3 ns gated fast photography as well as space and time resolved optical emission spectroscopy. The behavior of the plasma plume was studied with a laser energy of 3 J and 10 J. The results show that the evolution of the plasma plume is very complicated. The splitting and rebounding of the plasma plume is observed to occur early in the plumes history. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4737165]
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页数：5
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