Chemical consequences of laser-induced breakdown in molecular gases

2006 ◽  
Vol 30 (2-3) ◽  
pp. 75-88 ◽  
Author(s):  
Dagmar Babánková ◽  
Svatopluk Civiš ◽  
Libor Juha
Keyword(s):  
Molecular Gases ◽  
Laser Induced Breakdown

scholarly journals THz generation from laser-induced breakdown in pressurized molecular gases: on the way to terahertz remote sensing of the atmospheres of Mars and Venus

2020 ◽  
Vol 22 (1) ◽  
pp. 013039 ◽  
Author(s):  
Peter M Solyankin ◽  
Irina A Nikolaeva ◽  
Andrey A Angeluts ◽  
Daniil E Shipilo ◽  
Nikita V Minaev ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Molecular Gases ◽  
Thz Generation ◽  
Laser Induced Breakdown ◽  
The Way

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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