Continuous optical discharge stabilized by gas flow in weakly focused laser beam

AIAA Journal ◽  
1996 ◽  
Vol 34 (8) ◽  
pp. 1584-1588 ◽  
Author(s):  
R. Conrad ◽  
Yu. P. Raizer ◽  
S. T. Sarzhikov
Keyword(s):  
Laser Beam ◽  
Gas Flow ◽  
Optical Discharge ◽  
Continuous Optical Discharge

Plasma motion velocity along laser beam and continuous optical discharge in gas flow

1991 ◽  
Author(s):  
A. P. Budnik ◽  
K. G. Gus'kov ◽  
Yuri P. Raizer ◽  
S. T. Surjhikov
Keyword(s):  
Laser Beam ◽  
Gas Flow ◽  
Motion Velocity ◽  
Optical Discharge ◽  
Plasma Motion ◽  
Continuous Optical Discharge

Bistable behavior of a continuous optical discharge as a laser beam propagation effect

2013 ◽  
Author(s):  
V. P. Zimakov ◽  
V. A. Kuznetsov ◽  
A. N. Shemyakin ◽  
N. G. Solovyov ◽  
A. O. Shilov ◽  
...  
Keyword(s):  
Laser Beam ◽  
Beam Propagation ◽  
Laser Beam Propagation ◽  
Propagation Effect ◽  
Optical Discharge ◽  
Bistable Behavior ◽  
Continuous Optical Discharge

scholarly journals Ultrafast carbothermal reduction of silica to silicon using a CO2 laser beam

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Seok-Ho Maeng ◽  
Hakju Lee ◽  
Min Soo Park ◽  
Suhyun Park ◽  
Jaeki Jeong ◽  
...  
Keyword(s):  
Carbon Black ◽  
Laser Beam ◽  
Carbothermal Reduction ◽  
Gas Flow ◽  
Crystalline Silicon ◽  
Reduction Process ◽  
Reaction Chamber ◽  
Raman Shift ◽  
Influence Of Process Parameters ◽  
Laser Beam Intensity

AbstractWe report the extraction of silicon via a carbothermal reduction process using a CO2 laser beam as a heat source. The surface of a mixture of silica and carbon black powder became brown after laser beam irradiation for a few tens of seconds, and clear peaks of crystalline silicon were observed by Raman shift measurements, confirming the successful carbothermal reduction of silica. The influence of process parameters, including the laser beam intensity, radiation time, nitrogen gas flow in a reaction chamber, and the molar ratios of silica/carbon black of the mixture, on the carbothermal reduction process is explained in detail.

scholarly journals Laser-Plasma Deposition of Silicon Carbonitride Films by the HMDS Vapor Gas Flow Activation after a Laser Beam Focus

2021 ◽  
Vol 11 (07) ◽  
pp. 121-130
Author(s):  
V. N. Demin ◽  
V. O. Borisov ◽  
G. N. Grachev ◽  
A. L. Smirnov ◽  
M. N. Khomyakov ◽  
...  
Keyword(s):  
Laser Beam ◽  
Laser Plasma ◽  
Gas Flow ◽  
Plasma Deposition ◽  
Silicon Carbonitride ◽  
Flow Activation

Theoretical model for a continuous optical discharge

Physica B+C ◽  
1982 ◽  
Vol 112 (2) ◽  
pp. 259-270 ◽  
Author(s):  
S. Müller ◽  
J. Uhlenbusch
Keyword(s):  
Theoretical Model ◽  
Optical Discharge ◽  
Continuous Optical Discharge

scholarly journals Study of correlation between edge roughness and gas flow characteristics in laser beam fusion cutting

Procedia CIRP ◽  
2018 ◽  
Vol 74 ◽  
pp. 421-424
Author(s):  
Madlen Borkmann ◽  
Achim Mahrle ◽  
Eckhard Beyer
Keyword(s):  
Laser Beam ◽  
Gas Flow ◽  
Flow Characteristics ◽  
Edge Roughness

Experimental and theoretical investigation of laser rocket engine characteristics based on a continuous optical discharge

2010 ◽  
Vol 53 (4) ◽  
pp. 427-435 ◽  
Author(s):  
A. F. Dregalin ◽  
A. S. Cherenkov ◽  
A. G. Sattarov ◽  
A. R. Bikmuchev ◽  
S. N. Pislegin
Keyword(s):  
Theoretical Investigation ◽  
Rocket Engine ◽  
Optical Discharge ◽  
Continuous Optical Discharge
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