Modeling the melting threshold of mo films upon ultrashort laser irradiation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F19%3A00337338" target="_blank" >RIV/68407700:21340/19:00337338 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/19:00538961

Výsledek na webu

<a href="https://doi.org/10.17973/MMSJ.2019_12_2019104" target="_blank" >https://doi.org/10.17973/MMSJ.2019_12_2019104</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.17973/MMSJ.2019_12_2019104" target="_blank" >10.17973/MMSJ.2019_12_2019104</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Modeling the melting threshold of mo films upon ultrashort laser irradiation

Popis výsledku v původním jazyce

Modification of thin metallic films using ultrashort laser pulses involves interplay of numerous physical processes. Finding a right combination of laser parameters is essential for achieving the desired modification of a thin film deposited on a substrate. Numerical modeling is a convenient tool for gaining insights into ultrafast evolution of material properties and to predict an optimal range of irradiation parameters. In this work, a mathematical model is presented that describes the ultrafast laser heating and temperature relaxation in a thin molybdenum film deposited on a glass substrate. The laser energy absorption by molybdenum is described using a two-temperature model. The model takes into account the heat exchange between the film and the substrate through a boundary condition applied on the lattice temperature. The implicit numerical scheme employed for simulations was verified in respect of energy conservation. The model has been validated by comparison with experimental data on melting threshold fluences.

Název v anglickém jazyce

Modeling the melting threshold of mo films upon ultrashort laser irradiation

Popis výsledku anglicky

Modification of thin metallic films using ultrashort laser pulses involves interplay of numerous physical processes. Finding a right combination of laser parameters is essential for achieving the desired modification of a thin film deposited on a substrate. Numerical modeling is a convenient tool for gaining insights into ultrafast evolution of material properties and to predict an optimal range of irradiation parameters. In this work, a mathematical model is presented that describes the ultrafast laser heating and temperature relaxation in a thin molybdenum film deposited on a glass substrate. The laser energy absorption by molybdenum is described using a two-temperature model. The model takes into account the heat exchange between the film and the substrate through a boundary condition applied on the lattice temperature. The implicit numerical scheme employed for simulations was verified in respect of energy conservation. The model has been validated by comparison with experimental data on melting threshold fluences.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

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

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

MM Science Journal

ISSN

1803-1269

e-ISSN

1805-0476

Svazek periodika

2019

Číslo periodika v rámci svazku

December

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

9

Strana od-do

3585-3593

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-85076627168