Emission signal enhancement and plasma diagnostics using collinear double pulse for laser-induced breakdown spectroscopy of aluminum alloys

被引：11
|
作者：
Sun, Dui-Xiong [1 ,2 ,3 ]
Su, Mao-Gen [1 ,2 ,3 ]
Dong, Chen-Zhong [1 ,2 ,3 ]
机构：
[1] NWNU, Key Lab Atom & Mol Phys & Funct Mat Gansu Prov, Coll Phys & Elect Engn, Lanzhou 730070, Peoples R China
[2] Northwest Normal Univ, Joint Lab Atom & Mol Phys, Lanzhou 730070, Peoples R China
[3] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730070, Peoples R China
来源：
EUROPEAN PHYSICAL JOURNAL-APPLIED PHYSICS | 2013年 / 61卷 / 03期
基金：
中国国家自然科学基金;
关键词：
LIBS; SPECTROMETRY; SINGLE; STEEL;
D O I：
10.1051/epjap/2013120470
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A time and spatially resolved technique was used for the investigation of emission signal enhancement in collinear double- pulse LIBS. Two Q-switched Nd:YAG lasers at 1064 nm wavelength have been employed to produce laser-induced plasmas on aluminum-based alloys by single- (SP) and double-pulse (DP) LIBS. Time and spatial evolution of the plasma temperature and electron number density was investigated in these two experimental schemes. The enhancement of the emission line intensities was investigated, and a relation between the increases in intensity and excitation energy level was established. The results shows that the production of the second plasma by second laser pulse was important in DP experiment in collinear geometry.
引用
收藏
页码：30802-p1 / 30802-p8
页数：8
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