Investigation of femtosecond laser-produced plasma from various metallic targets using the Langmuir probe characteristic

2017 ◽  
Vol 24 (10) ◽  
pp. 103119 ◽  
Author(s):  
P. Nica ◽  
S. Gurlui ◽  
M. Osiac ◽  
M. Agop ◽  
M. Ziskind ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Langmuir Probe ◽  
Probe Characteristic ◽  
Laser Produced Plasma

scholarly journals Diagnostics of low-pressure capacitively coupled RF discharge argon plasma

2019 ◽  
Vol 13 (27) ◽  
pp. 76-82
Author(s):  
Kadhim A. Aadim
Keyword(s):  
Electron Temperature ◽  
Electron Density ◽  
Langmuir Probe ◽  
Gas Flow ◽  
Low Pressure ◽  
Gas Pressure ◽  
Rf Discharge ◽  
Electrode Gap ◽  
Probe Characteristic ◽  
Capacitively Coupled

Low-pressure capacitively coupled RF discharge Ar plasma has been studied using Langmuir probe. The electron temperature, electron density and Debay length were calculated under different pressures and electrode gap. In this work the RF Langmuir probe is designed using 4MHz filter as compensation circuit and I-V probe characteristic have been investigated. The pressure varied from 0.07 mbar to 0.1 mbar while electrode gap varied from 2-5 cm. The plasma was generated using power supply at 4MHz frequency with power 300 W. The flowmeter is used to control Argon gas flow in the range of 600 standard cubic centimeters per minute (sccm). The electron temperature drops slowly with pressure and it's gradually decreased when expanding the electrode gap. As the gas pressure increases, the plasma density rises slightly at low gas pressure while it drops little at higher gas pressure. The electron density decreases rapidly with expand distances between electrodes.

Femtosecond laser-produced plasma driven nanoparticle formation in gold aqueous solution

2021 ◽  
pp. 113709
Author(s):  
V.V. Kononenko ◽  
K.K. Ashikkalieva ◽  
N.R. Arutyunyan ◽  
A.M. Romshin ◽  
T.V. Kononenko ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Femtosecond Laser ◽  
Nanoparticle Formation ◽  
Laser Produced Plasma

Dynamics of molecular emission features from nanosecond, femtosecond laser and filament ablation plasmas

2016 ◽  
Vol 31 (6) ◽  
pp. 1192-1197 ◽  
Author(s):  
S. S. Harilal ◽  
J. Yeak ◽  
B. E. Brumfield ◽  
J. D. Suter ◽  
M. C. Phillips
Keyword(s):  
Laser Ablation ◽  
Femtosecond Laser ◽  
Physical Processes ◽  
Plasma System ◽  
Molecular Emission ◽  
Nanoparticle Formation ◽  
System P ◽  
Laser Produced Plasma ◽  
Evolutionary Paths

The evolutionary paths of molecular and nanoparticle formation in laser ablation plumes are not well understood due to the complexity of numerous physical processes that occur simultaneously in a transient laser-produced plasma system.

Dynamics of femtosecond laser-produced plasma ions

2014 ◽  
Vol 117 (1) ◽  
pp. 111-115 ◽  
Author(s):  
Xiaochang Ni ◽  
K. K. Anoop ◽  
X. Wang ◽  
D. Paparo ◽  
S. Amoruso ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Plasma Ions ◽  
Laser Produced Plasma
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