Femtosecond laser-assisted surface modification of tungsten with 10(15) W/cm(2) intensity in air and vacuum ambience

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F19%3A00329926" target="_blank" >RIV/68407700:21340/19:00329926 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.apsusc.2018.09.074" target="_blank" >https://doi.org/10.1016/j.apsusc.2018.09.074</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.apsusc.2018.09.074" target="_blank" >10.1016/j.apsusc.2018.09.074</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Femtosecond laser-assisted surface modification of tungsten with 10(15) W/cm(2) intensity in air and vacuum ambience

Popis výsledku v původním jazyce

The present study deals with modification of tungsten surface with high-intensity (similar to 10(15) W/cm(2)) femtosecond laser in air and vacuum surrounding. Specific findings include: (a) the applied intensities produce crater-like damages with depth similar to 31.0 mu m in vacuum and similar to 7.2 mu m 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).

Název v anglickém jazyce

Femtosecond laser-assisted surface modification of tungsten with 10(15) W/cm(2) intensity in air and vacuum ambience

Popis výsledku anglicky

The present study deals with modification of tungsten surface with high-intensity (similar to 10(15) W/cm(2)) femtosecond laser in air and vacuum surrounding. Specific findings include: (a) the applied intensities produce crater-like damages with depth similar to 31.0 mu m in vacuum and similar to 7.2 mu m 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).

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10305 - Fluids and plasma physics (including surface physics)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Applied Surface Science

ISSN

0169-4332

e-ISSN

1873-5584

Svazek periodika

464

Číslo periodika v rámci svazku

Jan

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

9

Strana od-do

99-107

Kód UT WoS článku

000447744200012

EID výsledku v databázi Scopus

2-s2.0-85053083567