Reduction of self-absorption in femtosecond laser-induced breakdown spectroscopy using spark discharge

被引：4

作者：

Wang, Qiuyun ^{[1
]}

Chen, Anmin ^{[1
]}

Liu, Yitong ^{[1
]}

Gao, Xun ^{[2
]}

Jin, Mingxing ^{[1
]}

机构：

[1] Jilin Univ, Inst Atom & Mol Phys, Changchun 130012, Peoples R China

[2] Changchun Univ Sci & Technol, Sch Sci, Changchun 130022, Peoples R China

来源：

PHYSICS OF PLASMAS | 2021年 / 28卷 / 08期

基金：

中国国家自然科学基金;

关键词：

SPECTRAL-LINES; OPTICAL-EMISSION; RESONANCE LINES; INDUCED PLASMA; ALUMINUM; COEFFICIENTS;

D O I：

10.1063/5.0051244

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 self-absorption effect of femtosecond laser-induced breakdown spectroscopy (LIBS) of aluminum with and without spark discharge is investigated in air. The measured time-resolved spectra show strong self-absorption/self-reversal in the absence of spark discharge. Still, when spark discharge is used to enhance the spectral intensity of LIBS, almost no self-reversal effect can be observed from time-resolved spectra. The results show that spark discharge can effectively reduce the self-absorption effect and improve spectral intensity in femtosecond-LIBS. Published under an exclusive license by AIP Publishing.

引用

页数：6

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