Experimental investigation of the structure and the dynamics of nanosecond laser-induced plasma in 1-atm argon ambient gas

2013 ◽  
Vol 103 (20) ◽  
pp. 204101 ◽  
Author(s):  
Qianli Ma ◽  
Vincent Motto-Ros ◽  
Xueshi Bai ◽  
Jin Yu
Keyword(s):  
Experimental Investigation ◽  
Nanosecond Laser ◽  
Laser Induced Plasma ◽  
Ambient Gas

Correlation between early-stage expansion and spectral emission of a nanosecond laser-induced plasma from organic material

2008 ◽  
Author(s):  
Matthieu Baudelet ◽  
Myriam Boueri ◽  
Jin Yu ◽  
Samuel S. Mao ◽  
Xianglei Mao ◽  
...  
Keyword(s):  
Organic Material ◽  
Early Stage ◽  
Nanosecond Laser ◽  
Spectral Emission ◽  
Laser Induced Plasma

Deburring Effect of Plasma Produced by Nanosecond Laser Ablation

2014 ◽  
Vol 136 (2) ◽  
Author(s):  
Yun Zhou ◽  
Yibo Gao ◽  
Benxin Wu ◽  
Sha Tao ◽  
Ze Liu
Keyword(s):  
Shock Wave ◽  
Laser Ablation ◽  
High Spatial Resolution ◽  
Shape Change ◽  
The Other ◽  
Nanosecond Laser ◽  
Laser Induced Plasma ◽  
Nanosecond Laser Ablation ◽  
Mechanical Breaking ◽  
The Sacrifice

This paper presents an interesting nanosecond (ns) laser-induced plasma deburring (LPD) effect (from microchannel sidewalls) discovered by the authors, which has been rarely reported before in the literature. Fast imagining study has been performed on plasma produced by ns laser ablation of the bottom of microchannels. It has been found that the plasma can effectively remove burrs from the sidewall of the channels, while on the other hand microscopic images taken in this study did not show any obvious size or shape change of the channel sidewall after LPD. LPD using a sacrifice plate has also been studied, where the plasma for deburring is generated by laser ablation of the sacrifice plate instead of the workpiece. The observed laser-induced plasma deburring effect has several potential advantages in practical micromanufacturing applications, such as high spatial resolution, noncontact and no tool wear, and less possibility of damaging or overmachining useful microfeatures when removing burrs from them. The fundamental mechanisms for the observed laser-induced plasma deburring effect still require lots of further work to completely understand, which may include mechanical breaking of burrs due to high kinetic energies carried by plasma and the associated shock wave, and/or thermal transport from plasma to burrs that may cause their heating and phase change, or other mechanisms.

Stabilization of a premixed methane-air flame with a high repetition nanosecond laser-induced plasma

2017 ◽  
Vol 92 ◽  
pp. 24-31 ◽  
Author(s):  
Yang Yu ◽  
Xiaohui Li ◽  
Xiaokang An ◽  
Xin Yu ◽  
Rongwei Fan ◽  
...  
Keyword(s):  
Nanosecond Laser ◽  
Laser Induced Plasma ◽  
High Repetition

Methane Decomposition Using Metal-Assisted Nanosecond Laser-Induced Plasma at Atmospheric Pressure

2014 ◽  
Vol 118 (51) ◽  
pp. 29822-29835 ◽  
Author(s):  
Z. Ghorbani ◽  
P. Parvin ◽  
A. Reyhani ◽  
S. Z. Mortazavi ◽  
A. Moosakhani ◽  
...  
Keyword(s):  
Atmospheric Pressure ◽  
Methane Decomposition ◽  
Nanosecond Laser ◽  
Laser Induced Plasma

Intensity Distribution of Laser Induced Plasma Generated at Different Ambient Gas Preassure

2008 ◽  
Author(s):  
Rafael Sarmiento ◽  
Rafael Cabanzo ◽  
Enrique Mejia-Ospino ◽  
Niklaus Ursus Wetter ◽  
Jaime Frejlich
Keyword(s):  
Intensity Distribution ◽  
Laser Induced Plasma ◽  
Ambient Gas

scholarly journals Enhancement of femtosecond laser-induced plasma fluorescence using a nanosecond laser

2019 ◽  
Vol 27 (4) ◽  
pp. 5755
Author(s):  
Xiaofeng Li ◽  
Bo Li ◽  
Jixu Liu ◽  
Zhifeng Zhu ◽  
Dayuan Zhang ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Nanosecond Laser ◽  
Laser Induced Plasma
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