scholarly journals Short-pulse CO2 laser systems for plasma investigation at the IPPLM

1985 ◽  
Author(s):  
J. BADZIAK ◽  
M. BORZEGKI ◽  
A. CHOJNACKA ◽  
Z. DZWIGALSKI ◽  
R. JAROCKI ◽  
...  
Keyword(s):  
Co2 Laser ◽  
Short Pulse ◽  
Laser Systems ◽  
Plasma Investigation

scholarly journals Short-pulse CO2 laser systems for plasma investigation at the IPPLM

1986 ◽  
Vol 4 (1) ◽  
pp. 27-41 ◽  
Author(s):  
J. Badziak ◽  
M. Borzecki ◽  
A. Chojnacka ◽  
Z. Dźwigalski ◽  
K. Janulewicz ◽  
...  
Keyword(s):  
Co2 Laser ◽  
Short Pulse ◽  
Laser System ◽  
Test Results ◽  
Single Beam ◽  
Laser Systems ◽  
Plasma Investigation

This paper presents the multigigawatt single-beam CO2 laser system and the configuration and the main subsystems of the 0.5 TW four-beam CO2 laser system being built at the IPPLM. Selected construction details and early test results are given.

scholarly journals Toward little heat-affected area of fused silica materials using short pulse and high power CO2 laser

2019 ◽  
Vol 12 ◽  
pp. 1363-1371 ◽  
Author(s):  
Linjie Zhao ◽  
Jian Cheng ◽  
Mingjun Chen ◽  
Xiaodong Yuan ◽  
Wei Liao ◽  
...  
Keyword(s):  
Co2 Laser ◽  
High Power ◽  
Short Pulse ◽  
Fused Silica ◽  
Affected Area ◽  
Silica Materials

Investigation of the State of Local Thermodynamic Equilibrium of a Laser-Produced Aluminum Plasma

2005 ◽  
Vol 59 (4) ◽  
pp. 529-536 ◽  
Author(s):  
Olivier Barthélemy ◽  
Joëlle Margot ◽  
Stéphane Laville ◽  
François Vidal ◽  
Mohamed Chaker ◽  
...  
Keyword(s):  
Excited States ◽  
Thermodynamic Equilibrium ◽  
Local Thermodynamic Equilibrium ◽  
Short Pulse ◽  
Ambient Air ◽  
Laser Induced Plasma ◽  
Laser Systems ◽  
Aluminum Plasma ◽  
Long Pulse ◽  
Xecl Excimer Laser

In this work, the assumption of local thermodynamic equilibrium (LTE) for a laser-induced plasma in ambient air is examined experimentally using two different laser systems, namely an infrared short-pulse Ti:Sapphire laser and an ultraviolet long-pulse XeCl excimer laser. The LTE assumption is investigated by examining the plasma produced at a laser fluence of 10 J/cm2 from aluminum targets containing iron and magnesium impurities. The excitation temperature is deduced from Boltzmann diagrams built from a large number of spatially integrated neutral iron lines distributed from 3.21 to 6.56 eV. It is shown that at any time after the end of the laser pulse, the neutral excited states are in excellent Boltzmann equilibrium. Detailed investigation of Boltzmann equilibrium further validates previous temperature measurements using less accurate diagrams. However, observations of ion lines provide some evidence that the ionized species do not obey Saha equilibrium, thereby indicating departure from LTE. This could be explained by the fact that the plasma cannot be considered as stationary for these species.

The short pulse duration limit for KrF laser systems

2005 ◽  
Author(s):  
I.N. Ross ◽  
P. Simon ◽  
S. Szatmari ◽  
P. Matousek ◽  
K. Osvay ◽  
...  
Keyword(s):  
Pulse Duration ◽  
Short Pulse ◽  
Short Pulse Duration ◽  
Krf Laser ◽  
Laser Systems

Surface melting of Al–Cu–Mg alloy using a short-pulse, planar waveguide CO2 laser for corrosion resistance improvement

2003 ◽  
Vol 15 (4) ◽  
pp. 233-239 ◽  
Author(s):  
M. G. Tsagkarakis ◽  
F. J. Villarreal ◽  
H. J. Baker ◽  
D. R. Hall ◽  
S. W. Williams
Keyword(s):  
Corrosion Resistance ◽  
Co2 Laser ◽  
Planar Waveguide ◽  
Short Pulse ◽  
Surface Melting ◽  
Mg Alloy ◽  
Resistance Improvement

A Dynamic Model for Condition Monitoring of a High-Power CO2 Industrial Laser

1999 ◽  
Vol 121 (2) ◽  
pp. 157-164 ◽  
Author(s):  
J. F. Tu ◽  
J. G. Katter ◽  
L. E. Monacelli ◽  
M. Gartner
Keyword(s):  
Co2 Laser ◽  
Laser Cooling ◽  
High Power ◽  
Power Distribution ◽  
Cooling System ◽  
Laser System ◽  
Operating Conditions ◽  
Distribution Model ◽  
Dynamic Features ◽  
Laser Systems

Industrial laser systems handle high power consumptions and may function under undesirable operating conditions if the systems are not properly maintained. It is sometimes difficult to diagnose why a laser is not functioning properly because the optical output is the result of complex interactions among many parameters such as the total gas pressure, effectiveness of the laser cooling system, operating environment, and gradual deterioration of laser components. In this paper, a dynamic power distribution model is developed to characterize the power distribution of a high-power transverse-flow DC-excited CO2 laser to account for dynamic effects such as continuously ramping up and down the laser output power and the cyclic nature of the chiller. The model contains the essential dynamic features of a CO2 laser system and yields solutions sufficiently accurate for practical diagnostic purposes.

scholarly journals All-reflective, highly accurate polarization rotator for high-power short-pulse laser systems

2012 ◽  
Vol 20 (18) ◽  
pp. 20742 ◽  
Author(s):  
S. Keppler ◽  
M. Hornung ◽  
R. Bödefeld ◽  
M. Kahle ◽  
J. Hein ◽  
...  
Keyword(s):  
Pulse Laser ◽  
High Power ◽  
Short Pulse ◽  
Polarization Rotator ◽  
Short Pulse Laser ◽  
Laser Systems

scholarly journals Flexible Hollow Light Guide for Higher Peak Short Pulse CO2 Laser

1987 ◽  
Vol 8 (3) ◽  
pp. 179-180
Author(s):  
Yuichi HASHISHIN ◽  
Uichi KUBO
Keyword(s):  
Co2 Laser ◽  
Light Guide ◽  
Short Pulse
Sign in / Sign up

Export Citation Format

Share Document