Results 51 to 60 of about 3,519,369 (196)
Material dependent influence of ring/spot beam profiles in laser powder bed fusion
Additive Manufacturing LettersIn recent years, the topic of beam shaping for improved laser material processing has rapidly grown influencing metal laser powder bed fusion (PBF-LB/M).
Lova Chechik +4 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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Investigation of conduction to keyhole mode transition [PDF]
, 2012 There are two very distinct welding modes in laser welding, keyhole and conduction mode. The characteristics of keyhole laser welding; mainly high penetration, high productivity and high aspect ratio have led the industry to focus more on this mode.
Goncalves Assuncao, Eurico
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Distributed grating-assisted coupler for optical all-dielectric electron accelerator
Physical Review Special Topics. Accelerators and Beams, 2005 A Bragg waveguide consisting of multiple dielectric layers with alternating index of refraction becomes an excellent option to form electron accelerating structure powered by high power laser sources.
Zhiyu Zhang +2 more
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Characterizing ultralow emittance electron beams using structured light fields
Physical Review Accelerators and Beams, 2021 Novel schemes for generating ultralow emittance electron beams have been developed in past years and promise compact particle sources with excellent beam quality suitable for future high-energy physics experiments and free-electron lasers.
Andreas Seidel +2 more
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Simultaneous ion beam profile scan using a single laser source
Physical Review Special Topics. Accelerators and Beams, 2013 We report on the world’s first experiment of a simultaneous profile scan of the hydrogen ion (H^{-}) beam using a laser wire system. The system was developed and brought to operational level of application at the superconducting linac of the Spallation ...
Y. Liu +4 more
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Metals, 2019 In order to meet the requirements of alignment capability, gap tolerance and welding track control, dual-beam laser welding has been put forward to weld tailored blanks with different thicknesses.
Xinge Zhang +4 more
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2D longitudinal modeling of heat transfer and fluid flow during multilayered [PDF]
, 2012 version post-print de l'article : JLA Vol : 24 Iss:3. 2D longitudinal modeling of heat transfer and fluid flow during multilayered direct laser metal deposition processDerived from laser cladding, the Direct Laser Metal Deposition (DLMD) process is ...
CARRON, Denis +6 more
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Ultrafast Airy Beam Generation with a Mode-Locked Fiber Laser
PhotonicsWe generate an ultrafast Airy beam with a mode-locked fiber laser. A diffractive optical element is placed inside the laser cavity and applies phase modulation on the pulses propagating in the cavity.
Silin Guo +4 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
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