Results 11 to 20 of about 62,100 (308)

Beam profile analyzer for CO2 lasers [PDF]

Journal of Applied Research and Technology, 2015
AbstractThe development of an optoelectronic system to analyze the beam intensity profile of CO2 lasers is presented herein. The device collects the beam profile with a LiTaO3 pyroelectric detector and uses a sampling technique based on the acquisition of horizontal sections at different levels.
López, Rubén, Villagómez, Ricardo
openaire   +2 more sources

Electronic diagnostics system for the analysis of laser beam profile

Iraqi Journal of Physics, 2011
In this work the analysis of laser beam profile system ,using a two dimensional CCD (Charge Coupled Device) arrays, is established. The system is capable of producing video graphics that give a two dimensional image of laser beam.
Bushra R. Mehdi
doaj   +2 more sources

Beam Profile Measurements and Simulations of the Petra Laser-Wire [PDF]

Proceedings of the 2005 Particle Accelerator Conference, 2006
The Laser-wire will be an essential diagnostic tool at the International Linear Collider. It uses a finely focussed laser beam to measure the transverse profile of electron bunches by detecting the Compton-scattered photons (or degraded electrons) downstream of where the laser beam intersects the electron beam.
Carter, J, Agapov, I, Blair, G, Boorman, G, Driouichi, C, Poirier, F, Price, M, Kamps, T, Balewski, K, Lewin, H, Schreiber, S, Wittenburg, K, Delerue, N, Howell, D, Boogert, S, Malton, S   +15 more
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The splitted beam profile of laser beam in the interaction of intense lasers with overdense plasmas

Laser and Particle Beams, 2011
AbstractIn this paper, the interaction of intense lasers with overdense plasmas is investigated. Based on the modified nonlinear wave equation describing the interaction of intense laser and overdense plasmas in nonparaxial region, due to the influence of off-axis components a2 and a4 in nonparaxial region, we first find the three-splitted laser beam ...
Xiongping Xia, Zebin Cai, Lin Yi
openaire   +2 more sources

Beam profile measurements with the 2-D laser-wire

, 2006
The laser-wire will be an essential diagnostic tool at the International Linear Collider (ILC). It uses a finely focused laser beam to measure the transverse profile of electron bunches by detecting the Compton-scattered photons downstream of the interaction point (IP), where the laser beam intersects the electron beam. Such a system has been installed
Price, M., Blair, G., Bosco, A., Boorman, G., Carter, J., Agapov, I., Driouichit, C., Boogert, S., Kamps, T., Poirier, F., Balewski, K., Lewin, H., Schreiber, S., Wittenburg, K., Delerue, N., Howell, D.   +15 more
openaire   +4 more sources

Possible explanations for different surface quality in laser cutting with 1 micron and 10 microns beams [PDF]

, 2012
In laser　cutting　of　thick　steel　sheets,　quality　difference　is　observed　between　cut　surfaces　obtained　with 1 micron and 10 micron laser beams. This paper investigates physical mechanisms for this interesting and important problem of the wavelength ...
Remy Fabbro, Koji Hirano, FABBRO, Rémy, HIRANO, Koji   +3 more
core   +1 more source

Analysis of hybrid Nd:Yag laser-MAG arc welding processes. [PDF]

, 2011
In the hybrid laser-arc welding process, a laser beam and an electric arc are coupled in order to combine the advantages of both processes: high welding speed, low thermal load and high depth penetration thanks to the laser; less demanding on joint ...
F. Coste, E. Le Guen, P. Le Masson, COSTE, Frédéric, LE MASSON, Philippe, M. Carin, LE GUEN, Emilie, FABBRO, Rémy, CARIN, Muriel, R. Fabbro   +9 more
core   +1 more source

Experimental investigation of hydrodynamics of melt layer during laser cutting of steel [PDF]

, 2011
In laser cutting process, understanding of hydrodynamics of melt layer is significant, because it is an important factor which controls the final quality. In this work, we observed hydrodynamics of melt layer on kerf front in the case of laser cutting of
Remy Fabbro, Koji Hirano, FABBRO, Rémy, HIRANO, Koji   +3 more
core   +1 more source

Characterization of Laser Beam Shaping Optics Based on Their Ablation Geometry of Thin Films

Micromachines, 2014
Thin film ablation with pulsed nanosecond lasers can benefit from the use of beam shaping optics to transform the Gaussian beam profile with a circular footprint into a Top-Hat beam profile with a rectangular footprint.
Stefan Rung, Johannes Barth, Ralf Hellmann   +2 more
doaj   +1 more source

Spatially Structured Optical Pump for Laser Generation Tuning

Nanomaterials, 2023
The goal and essential parameter of laser light conversion is achieving emitted radiation of higher brightness. For many applications, the laser beam must have the highest available beam quality and highest achievable power.
Gabrielius Kontenis, Darius Gailevicius, Victor Taranenko, Kestutis Staliunas   +3 more
doaj   +1 more source