Modeling thermal response of Mo thin films upon single femtosecond laser irradiation: Dynamics of film melting and substrate softening

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F22%3A00560660" target="_blank" >RIV/68378271:_____/22:00560660 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21340/22:00359170

Výsledek na webu

<a href="https://doi.org/10.1016/j.ijheatmasstransfer.2022.123292" target="_blank" >https://doi.org/10.1016/j.ijheatmasstransfer.2022.123292</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ijheatmasstransfer.2022.123292" target="_blank" >10.1016/j.ijheatmasstransfer.2022.123292</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Modeling thermal response of Mo thin films upon single femtosecond laser irradiation: Dynamics of film melting and substrate softening

Popis výsledku v původním jazyce

Energy relaxation in a thin molybdenum film exposed to a single laser pulse (wavelength 400 nm, pulse duration 200 fs at FWHM) has been investigated numerically. For this purpose, a two-temperature model was used accounting for the optical and thermodynamical properties of molybdenum deposited on a selection of substrates. The effect of the substrate on laser-induced film heating has been studied for the cases of fused silica, silicon, soda-lime glass as well as for a free-standing film. For a fused silica substrate, the calculated melting threshold fluence is in a good agreement with thickness-dependent experimental data available in literature. It has been found that, for Mo films with the thickness 107 nm, the softening point of the fused silica substrate is exceeded already at the Mo melting threshold fluence. This suggests the possibility of substrate damage related to glass deformation.

Název v anglickém jazyce

Modeling thermal response of Mo thin films upon single femtosecond laser irradiation: Dynamics of film melting and substrate softening

Popis výsledku anglicky

Energy relaxation in a thin molybdenum film exposed to a single laser pulse (wavelength 400 nm, pulse duration 200 fs at FWHM) has been investigated numerically. For this purpose, a two-temperature model was used accounting for the optical and thermodynamical properties of molybdenum deposited on a selection of substrates. The effect of the substrate on laser-induced film heating has been studied for the cases of fused silica, silicon, soda-lime glass as well as for a free-standing film. For a fused silica substrate, the calculated melting threshold fluence is in a good agreement with thickness-dependent experimental data available in literature. It has been found that, for Mo films with the thickness 107 nm, the softening point of the fused silica substrate is exceeded already at the Mo melting threshold fluence. This suggests the possibility of substrate damage related to glass deformation.

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

<a href="/cs/project/EF15_003%2F0000445" target="_blank" >EF15_003/0000445: Pokročilá příprava funkčních materiálů: Od mono k bi- a tri-chromatické excitaci s použitím tvarovaných laserových pulsů</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

International Journal of Heat and Mass Transfer

ISSN

0017-9310

e-ISSN

1879-2189

Svazek periodika

196

Číslo periodika v rámci svazku

Nov

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

123292

Kód UT WoS článku

000883417500008

EID výsledku v databázi Scopus

2-s2.0-85135395907