Oscillatory Langmuir probe ion current in laser-produced plasma expansion

被引:21
|
作者
Nica, P. [1 ,2 ]
Agop, M. [1 ,2 ]
Gurlui, S. [2 ,3 ]
Focsa, C. [2 ]
机构
[1] Tech Gh Asachi Univ, Dept Phys, Iasi 700029, Romania
[2] Univ Sci & Tech Lille, Lab Phys Lasers Atomes & Mol, UMR 8523, F-59655 Villeneuve Dascq, France
[3] Alexandru Ioan Cuza Univ, Fac Phys, Iasi 700506, Romania
关键词
ABLATION; MODEL;
D O I
10.1209/0295-5075/89/65001
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Using the Langmuir probe method to investigate the parameters of laser-produced plasma, our experimental results show an oscillatory structure of the recorded transient ion current. The periodic behavior is analyzed for various targets and probe positions and, after extracting the continuous part, it is found to be connected with the ion frequency and the electron-ion collision frequency. We conclude that theories to describe these oscillations may provide new diagnostic techniques of laser-produced plasma. Copyright (C) EPLA, 2010
引用
收藏
页数:4
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