Effect of Flat-Mirror Device on Laser-Induced Plasma Radiation Characteristics

被引：6
|
作者：
Chen Jin-zhong [1 ]
Bai Jin-ning [1 ]
Chen Zhen-yu [1 ]
Cheng Chen [1 ]
Sun Jiang [1 ]
Wei Yan-hong [1 ]
机构：
[1] Hebei Univ, Coll Phys Sci & Technol, Baoding 071002, Peoples R China
来源：
SPECTROSCOPY AND SPECTRAL ANALYSIS | 2013年 / 33卷 / 08期
关键词：
Laser-induced plasma; Flat-mirror device; Spectral line intensity; SNR; Electron temperature; Electron density; INDUCED BREAKDOWN SPECTROSCOPY; OPTICAL-EMISSION; CONFINEMENT; LIBS;
D O I：
10.3964/j.issn.1000-0593(2013)08-2039-04
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
To improve the quality of laser-induced breakdown spectroscopy, flat-mirror device was proposed. The effects of flat-mirror device on the radiation characteristics of laser-induced plasma were studied. The experimental results showed that when the device consisted of three flat-mirrors placed around the plasma, the spectral line intensity of Mg, Fe, Ba, Ti and Al increases by about 116. 2%, 96. 43%, 90. 93%, 102. 1% and 98. 57% than that without flat-mirror device, and the signal-to-noise raises by around 39. 17%, 32. 48%, 38. 07%, 39. 95% and 21. 30%, respectively. By measuring the plasma parameters, the mechanism of the radiation enhancement obtained with the device consisting of three flat-mirrors was explained. This method was an effective way to improve the detection capacity of LIBS.
引用
收藏
页码：2039 / 2042
页数：4
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