Femtosecond laser-assisted surface modification of tungsten with 1015 W/cm2 intensity in air and vacuum ambience
Само за регистроване кориснике
Чланак у часопису (Објављена верзија)
© 2018 Elsevier B.V.
МетаподациПриказ свих података о документу
The present study deals with modification of tungsten surface with high-intensity (∼1015 W/cm2) femtosecond laser in air and vacuum surrounding. Specific findings include: (a) the applied intensities produce crater-like damages with depth ∼31.0 μm in vacuum and ∼7.2 μm in air; (b) peripheral region of the damages is diffuse in air atmosphere unlike vacuum where it is more sharply defined; (c) hydrodynamic features, while present in vacuum, are dramatically reduced in air; (d) characteristic chemical surface changes occur at the surface, and (e) plasma forms in front of the target in both surroundings. The obtained results imply that the employed intensities, in a certain sense, can be used for simulation of some processes in the fusion reactor and for highly precise material removal and tungsten surface processing (by fine tuning of given fs laser parameters). © 2018 Elsevier B.V.
Кључне речи:1015 W/cm2 laser intensity / Femtosecond laser / Laser surface modification / Laser-induced damages/craters / Tungsten (W)
Извор:Applied Surface Science, 2019, 464, 99-107
- Ефекти дејства ласерског зрачења и плазме на савремене материјале при њиховој синтези, модификацији и анализи (RS-172019)
- International Atomic Energy Agency (IAEA - 20636)
- Ministry of Education, Youth and Sports of the Czech Republic (LD14089)
- Ministry of Education, Youth and Sports of the Czech Republic (LG15013)
Showing items related by title, author, creator and subject.
The influence of applying the additional continuous laser on the synthesis of silicon-based nanoparticles by picosecond laser ablation in liquid Popovic, D. M.; Chai, J. S.; Zekic, A. A.; Trtica, Milan; Stašić, Jelena M.; Sarvan, M. Z. (Laser Physics Letters, 2014)
Continuous wave laser for tailoring the photoluminescence of silicon nanoparticles produced by laser ablation in liquid Popovic, Dusan M.; Kushima, Akihiro; Bogdanovic, Milena I.; Chai, Jong Seo; Kasalica, Becko; Trtica, Milan; Stašić, Jelena M.; Zekic, Andrijana A. (Journal of Applied Physics, 2017)
Determination of low alloying elements concentrations in cast iron by laser induced breakdown spectroscopy based on TEA CO2 laser system Savović, Jelena; Živković, Sanja; Momčilović, Miloš; Trtica, Milan; Stoiljković, Milovan; Kuzmanović, Miroslav M. (Journal of the Serbian Chemical Society, 2017)