Liquid-phase laser ablation

2010 ◽  
Vol 82 (6) ◽  
pp. 1317-1327 ◽  
Author(s):  
Koichi Sasaki ◽  
Noriharu Takada
Keyword(s):  
High Pressure ◽  
Laser Ablation ◽  
Liquid Phase ◽  
Cavitation Bubble ◽  
Dense Plasma ◽  
Intense Laser ◽  
Solid Target ◽  
Formation Processes ◽  
Intense Laser Pulse ◽  
High Pressure And Temperature

The irradiation of an intense laser pulse onto a solid target immersed in liquid produces dense plasma. The plasma produced by liquid-phase laser ablation has unique features at high pressure and temperature, which are never realized by liquid-phase discharges. Another unique characteristic of liquid-phase laser ablation is the formation of a cavitation bubble. This article reports the fundamental aspects of liquid-phase laser-ablation plasmas, cavitation bubbles, and the formation processes of nanoparticles, together with some applications of liquid-phase laser ablation.

Mechanism of Consolidation of Nanoparticles in Diamond-Boron Oxide System at High Pressure and Temperature

2006 ◽  
Vol 518 ◽  
pp. 189-194 ◽  
Author(s):  
A. Bykov ◽  
G. Oleynik ◽  
A. Ragulya ◽  
I. Timofeeva ◽  
L. Klochkov ◽  
...  
Keyword(s):  
High Pressure ◽  
Liquid Phase ◽  
Boron Oxide ◽  
Diamond Powder ◽  
Oxide System ◽  
Sintering Process ◽  
High Pressure And Temperature ◽  
Ultradisperse Diamond ◽  
High Pressure Sintering ◽  
Diamond Powders

The high pressure sintering process of nanocrystalline diamond powder was studied. The influence of the liquid phase on the base of boron oxide was analyzed. The mechanism of cooperative-diffusive coalescence, which acts during sintering of ultradisperse diamond powders, is proposed.

scholarly journals Dynamic high pressure generation through plasma implosion driven by an intense laser pulse

AIP Advances ◽  
2017 ◽  
Vol 7 (3) ◽  
pp. 035007 ◽  
Author(s):  
M. Li ◽  
J. X. Wang ◽  
T. Yuan ◽  
Y. X. Xu ◽  
W. J. Zhu
Keyword(s):  
High Pressure ◽  
Laser Pulse ◽  
Intense Laser ◽  
Intense Laser Pulse ◽  
Dynamic High Pressure

Effect of Pressurization on the Dynamics of a Cavitation Bubble Induced by Liquid-Phase Laser Ablation

2009 ◽  
Vol 2 ◽  
pp. 046501 ◽  
Author(s):  
Koichi Sasaki ◽  
Tetsutaro Nakano ◽  
Wafaa Soliman ◽  
Noriharu Takada
Keyword(s):  
Laser Ablation ◽  
Liquid Phase ◽  
Cavitation Bubble

scholarly journals Laser-produced dense plasma in extremely high pressure gas and its application to a plasma-bridged gap switch

1989 ◽  
Vol 7 (3) ◽  
pp. 531-537 ◽  
Author(s):  
J. Yamada ◽  
T. Okuda
Keyword(s):  
High Pressure ◽  
Applied Voltage ◽  
High Velocity ◽  
Focal Spot ◽  
Laser Light ◽  
Switching Time ◽  
Dense Plasma ◽  
Intense Laser ◽  
Switching Characteristics ◽  
Focusing Lens

When an extremely high pressure gas is irradiated by an intense laser light, a dense plasma produced at the focal spot moves towards the focusing lens with a high velocity. Making use of this phenomenon, a new plasma-bridged gap switch is proposed and its switching characteristics is experimentally examined. From the experiments, it is confirmed that the switching time is almost constant with the applied voltage only when the focal spot is just on the positive electrode, indicating that the bridging of gap is caused by the laser light.

Control of Plasma and Cavitation Bubble in Liquid-Phase Laser Ablation Using Supersonic Waves

2011 ◽  
Vol 50 (12R) ◽  
pp. 126201 ◽  
Author(s):  
Noriharu Takada ◽  
Akinori Fujikawa ◽  
Koichi Sasaki
Keyword(s):  
Laser Ablation ◽  
Liquid Phase ◽  
Cavitation Bubble
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