Results 21 to 30 of about 62,100 (308)
Beam shaping system for laser-induced crystal growth
, 2023 We report on the development and setup of a beam shaping system for the Laser-Diode-Floating-Zone (LDFZ) crystal growth, a crucible-free technique used for growing high-purity crystals.
Hans-Dieter Hoffmann +9 more
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Application of a liquid crystal spatial light modulator to laser marking [PDF]
, 2011 Laser marking is demonstrated using a nanosecond (ns) pulse duration laser in combination with a liquid crystal spatial light modulator to generate two-dimensional patterns directly onto thin films and bulk metal surfaces.
Rainer J. Beck +7 more
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Influence of laser beam profile on the selective laser melting process of AlSi10Mg
, 2022 Art. 022059, 11 S.Selective laser melting (SLM) offers great potential to manufacture customized and complex metallic parts. Major drawbacks that limit its industrial application are the high cost of the process that is related to low process speeds and ...
Tarhini, H. +2 more
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Study the distribution of photovoltaic power and cross section in laser spot light [PDF]
مجلة التربية والعلم, 2007 This article presents the use of image processing technique to study the effect of injection current on the optical power distribution and laser spot cross-section (profile) of semiconductor laser type (AlGaInP).
Ragheed Ibraheem
doaj +1 more source
Enhanced Photoacoustic Beam Profiling of Pulsed Lasers
International Journal of Thermophysics, 2013 An improved version of a photoacoustic beam profiler of pulsed lasers is presented. The new model resorts to high-bandwidth condenser microphones to register higher-order, excited acoustic modes, thus enabling more accurate profiling. In addition, Xe was used as a buffer gas since its high atomic weight further reduces the eigenfrequencies. Furthermore,
González, Martín Germán +4 more
openaire +2 more sources
Physical Review Special Topics. Accelerators and Beams, 2015 Propagation of a Gaussian x-ray laser beam has been analyzed in collisionless thermal quantum plasma with considering a ramped density profile. In this density profile due to the increase in the plasma density, an earlier and stronger self-focusing ...
S. Zare +4 more
doaj +1 more source
Shaping Beam Profiles Using Plastic Optical Fiber Tapers with Application to Ice Sensors
Sensors, 2020 Using either bulk or fiber optics the profile of laser beams can be altered from Gaussian to top-hat or hollow beams allowing enhanced performance in applications like laser cooling, optical trapping, and fiber sensing.
Kostas Amoiropoulos +3 more
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Laser intensity profile as a means to steer microstructure of deposited tracks in Directed Energy Deposition [PDF]
, 2023 In Laser-based Directed Energy Deposition (L-DED) the laser-induced spatial and temporal thermal cycles strongly determine the microstructure of deposited layers.
Bremer, Scholte J.L. +4 more
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Compact Beam Homogenizer Module with Laser-Fabricated Lens-Arrays
Applied Sciences, 2021 We report on manufacturing of a compact beam homogenizer module including two lens arrays and an aperture. Lens arrays are fabricated by an all laser-based technology employing a precise femtosecond pulsed laser ablation and a CO2 laser polishing step ...
Simon Schwarz +4 more
doaj +1 more source
Journal of Advanced Joining ProcessesThe present paper investigates the application of laser beam shaping and laser beam oscillations (wobbling) for laser processing of the crack-prone aluminum alloy 6013, used in automotive and aerospace applications.
Thomas Stoll +3 more
doaj +1 more source