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Fundamental study: Space-temporal evolution of laser-induced plasmas
Faculty
Science
Year:
2017
Type of Publication:
ZU Hosted
Pages:
Authors:
Mahmoud Suleiman Mohammed Dawood
Staff Zu Site
Abstract In Staff Site
Journal:
1 Scholars' Press
Volume:
Keywords :
Fundamental study: Space-temporal evolution , laser-induced plasmas
Abstract:
After decades of development, laser ablation has become an important technique for a large number of applications such as thin film deposition, nanoparticle synthesis, micromachining, chemical analysis, etc. Experimental and theoretical studies have been conducted to understand the physical mechanisms of the laser ablation processes and their dependence on the laser wavelength, pulse duration, ambient gas and target material. The present work describes and investigates the relative importance of the physical mechanisms influencing the characteristics of aluminum laser-induced plasmas. The general scope of this research encompasses a thorough study of the interplay between the plasma plume dynamics and the ambient gas in which they expand. This is achieved by imaging and analyzing the temporal and spatial evolution the plume in terms of spectral intensity, electron density and excitation temperature within various environments; extending from vacuum to atmospheric pressure (760 Torr), in an inert gas like argon and heluim, as well as in a chemically active gas like nitrogen
Author Related Publications
Mahmoud Suleiman Mohammed Dawood, "Effect of ambient gas pressure and nature on the temporal evolution of aluminum laser-induced plasmas", American institute of physics, 2014
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Mahmoud Suleiman Mohammed Dawood, "Influence of surrounding gas, composition and pressure on plasma plume dynamics of nanosecond pulsed laser-induced aluminum plasmas", American institute of physics, 2015
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Mahmoud Suleiman Mohammed Dawood, "Generation of Nanosized Particles during Mechanical Alloying and Their Evolution through the Hot Extrusion Process in Bismuth-Telluride-Based Alloys", Springer US, 2010
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Mahmoud Suleiman Mohammed Dawood, "Axial-and radial-resolved electron density and excitation temperature of aluminum plasma induced by nanosecond laser: Effect of the ambient gas composition and pressure", AIP Publishing, 2015
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Mahmoud Suleiman Mohammed Dawood, "Structural and opto-electrical characterization of sodium-2, 3-dicyano-5, 6-dichloro-1, 4-benzo-quinone (Na-DDQ) as complex thin films", Elsevier, 2019
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Department Related Publications
Abdullah Fathi Aly Saad, "Ageing effects on polymeric track detectors: studies of etched tracks at nanosize scale using atomic force microscope", RADIATION PHYSICS, 2012
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Ahmed Elfalaky Elsaid Abdelrehim, "Electrical and Dielectric Properties of Charge Transfer Complexes: Interactions between Norfloxacin and Ciprofloxacin with Picric Acid and 3,5-Dinitrobenzoic Acid1", Russa, 2013
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Ahmed Elfalaky Elsaid Abdelrehim, "Spectroscopic and physical measurements on charge-transfer complexes: Interactions between norfloxacin and ciprofloxacin drugs with picric acid and 3,5-dinitrobenzoic acid acceptors", Englabd, 2011
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Ahmed Elfalaky Elsaid Abdelrehim, "Bone-like Material, Synthesis, Optimization and Characterization", America, 2014
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Ahmed Elfalaky Elsaid Abdelrehim, "Structural and electrical properties of HgTe thin films", england, 2000
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