Results 21 to 30 of about 215,149 (301)

Laser ablation of lanthanum phosphate for pulsed laser deposition

open access: yesInternational Journal of Ceramic Engineering & Science, 2021
A theoretical model has been used to simulate pulsed laser ablation of Lanthanum Phosphate (LaPO4) by nanosecond Nd:YAG laser irradiation. Material ablation rate per laser pulse was experimentally measured as a function of average incident laser fluence ...
Sucharita Sinha
doaj   +1 more source

A randomized prospective long-term (\u3e 1 year) clinical trial comparing the efficacy and safety of radiofrequency ablation to 980nm laser ablation of the great saphenous vein [PDF]

open access: yes, 2016
Purpose To compare the short- and long-term (\u3e1 year) efficacy and safety of radiofrequency ablation (ClosureFAST™) versus endovenous laser ablation (980 nm diode laser) for the treatment of superficial venous insufficiency of the great saphenous vein.
Komorowski, Daniel   +5 more
core   +2 more sources

High-energy continuous wave laser ablation of alumina ceramic

open access: yesJournal of Materials Research and Technology, 2023
The development of high-energy continuous wave (CW) laser has enabled the generation of output powers ranging from 300 to 500 kW. Understanding the ablation mechanism of CW lasers at high laser fluence is crucial for the design of effective high-energy ...
Xianshi Jia   +11 more
doaj   +1 more source

The impact of O/Si ratio and hydrogen content on ArF excimer laser ablation of fused silica [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2014
The impact of stoichiometry and hydrogen content on the ArF excimer laser ablation characteristics of fused silica is investigated. Near-surface substoichiometic SiOx with X < 2 diminishes the ablation threshold as a result of increased absorption.
Tasche D.   +4 more
doaj   +1 more source

Ion distribution and ablation depth measurements of a fs-ps laser-irradiated solid tin target [PDF]

open access: yes, 2017
The ablation of solid tin surfaces by an 800-nanometer-wavelength laser is studied for a pulse length range from 500 fs to 4.5 ps and a fluence range spanning 0.9 to 22 J/cm^2.
A. Antoncecchi   +13 more
core   +3 more sources

GHz bursts in MHz burst (BiBurst) enabling high-speed femtosecond laser ablation of silicon due to prevention of air ionization

open access: yesInternational Journal of Extreme Manufacturing, 2023
For the practical use of femtosecond laser ablation, inputs of higher laser intensity are preferred to attain high-throughput material removal. However, the use of higher laser intensities for increasing ablation rates can have detrimental effects on ...
Kotaro Obata   +4 more
doaj   +1 more source

Impact of open de-ionized water thin film laminar immersion on the liquid immersed ablation threshold and ablation rate of features machined by KrF excimer laser ablation of bisphenol A polycarbonate [PDF]

open access: yes, 2009
Debris control and surface quality are potential major benefits of sample liquid immersion when laser micromachining; however, the use of an immersion technique potentially modifies the ablation mechanism when compared to an ambient air interaction.
C.F. Dowding   +23 more
core   +2 more sources

Second-harmonic generation of ZnO nanoparticles synthesized by laser ablation of solids in liquids [PDF]

open access: yes, 2018
We report the synthesis of small zinc oxide nanoparticles (ZnO NPs) based colloidal suspensions and the study of second-harmonic generation from aggregated ZnO NPs deposited on glass substrates.
Aguilar, G   +6 more
core   +1 more source

A Model of Ultra-Short Pulsed Laser Ablation of Metal with Considering Plasma Shielding and Non-Fourier Effect

open access: yesEnergies, 2018
In this paper, a non-Fourier heat conduction model of ultra-short pulsed laser ablation of metal is established that takes into account the effect of the heat source, laser heating of the target, the evaporation and phase explosion of target material ...
Sheng Tan   +4 more
doaj   +1 more source

Picosecond high-repetition-rate pulsed laser ablation of dielectrics: the effect of energy accumulation between pulses [PDF]

open access: yes, 2015
We report experiments on the ablation of arsenic trisulphide and silicon using high-repetition-rate (megahertz) trains of picosecond pulses. In the case of arsenic trisulphide, the average single pulse fluence at ablation threshold is found to be >100 ...
Gamaly, Eugene G   +3 more
core   +1 more source

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