Flame-enhanced laser-induced breakdown spectroscopy

被引：58

作者：

Liu, L. ^{[1
]}

Li, S. ^{[2
]}

He, X. N. ^{[1
]}

Huang, X. ^{[1
]}

Zhang, C. F. ^{[1
]}

Fan, L. S. ^{[1
]}

Wang, M. X. ^{[1
]}

Zhou, Y. S. ^{[1
]}

Chen, K. ^{[2
]}

Jiang, L. ^{[3
]}

Silvain, J. F. ^{[1
,4
]}

Lu, Y. F. ^{[1
]}

机构：

[1] Univ Nebraska, Dept Elect Engn, Lincoln, NE 68588 USA

[2] Univ Pittsburgh, Dept Elect & Comp Engn, Pittsburgh, PA 15260 USA

[3] Beijing Inst Technol, Sch Mech Engn, Beijing 100081, Peoples R China

[4] Inst Chim Mat Condensee Bordeaux ICMCB CNRS 87, F-33608 Pessac, France

来源：

OPTICS EXPRESS | 2014年 / 22卷 / 07期

基金：

美国国家科学基金会;

关键词：

SAMPLE TEMPERATURE; OPTICAL-EMISSION; PULSE; PLASMA; ABLATION; TARGET;

D O I：

10.1364/OE.22.007686

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Flame-enhanced laser-induced breakdown spectroscopy (LIBS) was investigated to improve the sensitivity of LIBS. It was realized by generating laser-induced plasmas in the blue outer envelope of a neutral oxy-acetylene flame. Fast imaging and temporally resolved spectroscopy of the plasmas were carried out. Enhanced intensity of up to 4 times and narrowed full width at half maximum (FWHM) down to 60% for emission lines were observed. Electron temperatures and densities were calculated to investigate the flame effects on plasma evolution. These calculated electron temperatures and densities showed that high-temperature and low-density plasmas were achieved before 4 mu s in the flame environment, which has the potential to improve LIBS sensitivity and spectral resolution. (C) 2014 Optical Society of America

引用

页码：7686 / 7693

页数：8

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