Temporal evolution of the shock wave and hot core air in laser induced plasma

2000 ◽  
Vol 77 (20) ◽  
pp. 3158-3160 ◽  
Author(s):  
Hugo Sobral ◽  
Mayo Villagrán-Muniz ◽  
Rafael Navarro-González ◽  
Alejandro C. Raga
Keyword(s):  
Shock Wave ◽  
Temporal Evolution ◽  
Laser Induced Plasma

Spatiotemporal diagnostics of laser induced plasma of potassium gallosilicate zeolite

2019 ◽  
Vol 34 (6) ◽  
pp. 1247-1255 ◽  
Author(s):  
J. J. Camacho ◽  
J. Vrabel ◽  
S. Manzoor ◽  
L. V. Pérez-Arribas ◽  
D. Díaz ◽  
...  
Keyword(s):  
Temporal Evolution ◽  
Zeolite Sample ◽  
Laser Induced Plasma ◽  
Zeolite P

The present work focuses on the analysis of laser induced plasma of a zeolite sample to study its spatial and temporal evolution.

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.

Influence of key parameters on the interaction of the laser induced plasma hot core and shock wave

2019 ◽  
Vol 48 (4) ◽  
pp. 406001
Author(s):  
文 明 Wen Ming ◽  
王殿恺 Wang Diankai ◽  
王伟东 Wang Weidong
Keyword(s):  
Shock Wave ◽  
Laser Induced Plasma

LASER PROPULSION FOR TRANSPORT IN WATER ENVIRONMENT

2010 ◽  
Vol 24 (07) ◽  
pp. 641-648 ◽  
Author(s):  
BING HAN ◽  
ZHONG-HUA SHEN ◽  
JIAN LU ◽  
XIAO-WU NI
Keyword(s):  
Shock Wave ◽  
High Intensity ◽  
Water Environment ◽  
Bubble Oscillation ◽  
Laser Induced Plasma ◽  
Laser Propulsion ◽  
High Intensity Laser ◽  
Plasma Shock Wave ◽  
Plasma Shock ◽  
Intensity Laser

Problems that cumber the development of the laser propulsion in atmosphere and vacuum are discussed. Based on the theory of interaction between high-intensity laser and materials, such as air and water, it is proved that transport in a water environment can be impulsed by laser. The process of laser propulsion in water is investigated theoretically and numerically. It shows that not only the laser induced plasma shock wave can be used, but also the laser-induced bubble oscillation shock waves and the pressure induced by the collapsing bubble can be used. Many experimental results show that the theory and the numerical results are valid.

Temporal evolution of femtosecond laser induced plasma filament in air and N2

2013 ◽  
Vol 103 (24) ◽  
pp. 244102 ◽  
Author(s):  
J. Papeer ◽  
D. Gordon ◽  
P. Sprangle ◽  
M. Botton ◽  
A. Zigler
Keyword(s):  
Femtosecond Laser ◽  
Temporal Evolution ◽  
Laser Induced Plasma ◽  
Plasma Filament
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