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Femtosecond laser-assisted surface modification of tungsten with 1015 W/cm2 intensity in air and vacuum ambience

Authorized Users Only
2019
Authors
Trtica, Milan
Limpouch, Jiri
Stašić, Jelena M.
Gavrilov, Peter T.
Article (Published version)
,
© 2018 Elsevier B.V.
Metadata
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Abstract
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.
Keywords:
1015 W/cm2 laser intensity / Femtosecond laser / Laser surface modification / Laser-induced damages/craters / Tungsten (W)
Source:
Applied Surface Science, 2019, 464, 99-107
Funding / projects:
  • Effects of laser radiation and plasma on novel materials in their synthesis, modification, and analysis (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)

DOI: 10.1016/j.apsusc.2018.09.074

ISSN: 0169-4332

WoS: 000447744200012

Scopus: 2-s2.0-85053083567
[ Google Scholar ]
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5
URI
https://linkinghub.elsevier.com/retrieve/pii/S0169433218324929
https://vinar.vin.bg.ac.rs/handle/123456789/7871
Collections
  • Radovi istraživača
Institution/Community
Vinča
TY  - JOUR
AU  - Trtica, Milan
AU  - Limpouch, Jiri
AU  - Stašić, Jelena M.
AU  - Gavrilov, Peter T.
PY  - 2019
UR  - https://linkinghub.elsevier.com/retrieve/pii/S0169433218324929
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7871
AB  - 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.
T2  - Applied Surface Science
T1  - Femtosecond laser-assisted surface modification of tungsten with 1015 W/cm2 intensity in air and vacuum ambience
VL  - 464
SP  - 99
EP  - 107
DO  - 10.1016/j.apsusc.2018.09.074
ER  - 
@article{
author = "Trtica, Milan and Limpouch, Jiri and Stašić, Jelena M. and Gavrilov, Peter T.",
year = "2019",
abstract = "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.",
journal = "Applied Surface Science",
title = "Femtosecond laser-assisted surface modification of tungsten with 1015 W/cm2 intensity in air and vacuum ambience",
volume = "464",
pages = "99-107",
doi = "10.1016/j.apsusc.2018.09.074"
}
Trtica, M., Limpouch, J., Stašić, J. M.,& Gavrilov, P. T.. (2019). Femtosecond laser-assisted surface modification of tungsten with 1015 W/cm2 intensity in air and vacuum ambience. in Applied Surface Science, 464, 99-107.
https://doi.org/10.1016/j.apsusc.2018.09.074
Trtica M, Limpouch J, Stašić JM, Gavrilov PT. Femtosecond laser-assisted surface modification of tungsten with 1015 W/cm2 intensity in air and vacuum ambience. in Applied Surface Science. 2019;464:99-107.
doi:10.1016/j.apsusc.2018.09.074 .
Trtica, Milan, Limpouch, Jiri, Stašić, Jelena M., Gavrilov, Peter T., "Femtosecond laser-assisted surface modification of tungsten with 1015 W/cm2 intensity in air and vacuum ambience" in Applied Surface Science, 464 (2019):99-107,
https://doi.org/10.1016/j.apsusc.2018.09.074 . .

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