Study to reduce laser-induced breakdown spectroscopy measurement uncertainty using plasma characteristic parameters

2010 ◽  
Vol 65 (7) ◽  
pp. 549-556 ◽  
Author(s):  
Jie Feng ◽  
Zhe Wang ◽  
Zheng Li ◽  
Weidou Ni
Keyword(s):  
Measurement Uncertainty ◽  
Laser Induced Breakdown Spectroscopy ◽  
Characteristic Parameters ◽  
Breakdown Spectroscopy ◽  
Spectroscopy Measurement ◽  
Laser Induced Breakdown ◽  
Plasma Characteristic

Influence of Binder on Laser-Induced Breakdown Spectroscopy Measurement of Unburned Carbon in Fly Ash

2014 ◽  
Vol 41 (3) ◽  
pp. 0315003
Author(s):  
沈跃良 Shen Yueliang ◽  
姚顺春 Yao Shunchun ◽  
潘刚 Pan Gang ◽  
徐齐胜 Xu Qisheng ◽  
李旭 Li Xu ◽  
...  
Keyword(s):  
Fly Ash ◽  
Unburned Carbon ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Spectroscopy Measurement ◽  
Laser Induced Breakdown

Nanosecond laser-induced breakdown assisted by femtosecond laser pre-ionization in air: the effect on spatial resolution and continuous radiation

2020 ◽  
Vol 92 (2) ◽  
pp. 20701
Author(s):  
Bo Li ◽  
Xiaofeng Li ◽  
Zhifeng Zhu ◽  
Qiang Gao
Keyword(s):  
Femtosecond Laser ◽  
Spatial Resolution ◽  
Laser Induced Breakdown Spectroscopy ◽  
Nanosecond Laser ◽  
Breakdown Threshold ◽  
Powerful Technique ◽  
Breakdown Spectroscopy ◽  
Continuous Radiation ◽  
Laser Induced Breakdown

Laser-induced breakdown spectroscopy (LIBS) is a powerful technique for quantitative diagnostics of gases. The spatial resolution of LIBS, however, is limited by the volume of plasma. Here femtosecond-nanosecond dual-pulsed LIBS was demonstrated. Using this method, the breakdown threshold was reduced by 80%, and decay of continuous radiation was shortened. In addition, the volume of the plasma was shrunk by 85% and hence, the spatial resolution of LIBS was significantly improved.

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