Results 21 to 30 of about 6,746,161 (288)
Synthesis and Modification of Nanostructured Thin Films
The idea of nanomaterials, nanoscience, and nanotechnologies was formulated by Richard Feynman in 1959 in his famous lecture “There’s Plenty of Room at the Bottom” [...]
Ion N. Mihailescu
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Kinetics of Laser Induced Plasma on an Aqueous Surface [PDF]
Emission spectra of MgI and MgII from a plasma induced by the interaction of a laser pulse with the surface of aqueous solutions of MgCl2, were recorded by a time resolved spectroscopy method to obtain information on the processes involved in the formation and the evolution of the two different species.
J. Ben Ahmed, Z. Ben Lakhdar, G. Taieb
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Although laser ablation of polymers is well investigated the achievable surface quality of this process is limited due to laser-induced structural and morphological defects, arising surface roughness and redeposition of debris.
Visar Demiri +4 more
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Few-femtosecond resolved imaging of laser-driven nanoplasma expansion
The free expansion of a planar plasma surface is a fundamental non-equilibrium process relevant for various fields but as-yet experimentally still difficult to capture.
C Peltz +25 more
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High-Efficiency Copper Removal by Nitrogen Plasma-Assisted Picosecond Laser Processing
Copper (Cu) removal efficiency is a key parameter in the processing of Cu-based electronic devices. Herein, a nitrogen plasma-assisted picosecond (ps) laser process for Cu removal is presented.
Yunfan Li +9 more
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We report on the characteristics of aluminium trihydrate filled poly(methyl methacrylate) composite (PMMA/ATH) coatings realised by plasma deposition at atmospheric pressure. For this purpose, PMMA/ATH powder was fed to a plasma jet where the process and
Lena M. Wallenhorst +7 more
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Keyhole laser welding is the benchmark for deep-penetration joining processes. It needs high incident laser beam power densities at the workpiece surface to take place. The gaseous phase plays a fundamental role to keep the deep and narrow keyhole cavity
Donato Coviello +2 more
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Properties of plasmonic arrays produced by pulsed-laser nanostructuring of thin Au films
A brief description of research advances in the area of short-pulse-laser nanostructuring of thin Au films is followed by examples of experimental data and a discussion of our results on the characterization of structural and optical properties of gold ...
Katarzyna Grochowska +6 more
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Numerical simulation of laser-produced plasma expansion on a droplet surface
AbstractIn this study, a numerical model of the plasma expansion on a droplet surface based on the initial plasma method was proposed. The initial plasma was obtained through the pressure inlet boundary condition, and the effect of ambient pressure on the initial plasma and adiabatic expansion of the plasma on the droplet surface, including the effect ...
Zhenyu Zhao, Weizhong Li
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Most aluminum alloys, especially the 7xxx series, are incompatible with laser additive manufacturing due to many factors. In-situ process monitoring technology offers an excellent opportunity for process understanding and control, which improves the ...
Wenjing Ren +4 more
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