Towards description of mechanical damage of thin molybdenum film upon pulsed laser irradiation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F21%3A00354146" target="_blank" >RIV/68407700:21340/21:00354146 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Towards description of mechanical damage of thin molybdenum film upon pulsed laser irradiation

Popis výsledku v původním jazyce

In this work, as a first step, we study the role of stress as a damage mechanism for a thin molybdenum film deposited on a glass substrate and irradiated by an ultrashort laser pulse using two different models: an hydrodynamic model and a thermo-elastic model. Coupled with a two-temperature model (TTM) and an equation of state, the hydrodynamical description enables us to compute the pressure and density of the solid as function of laser irradiation parameters. A Lagrangian approach was adopted to easily determine the laser-induced motion of the free surface. The thermoelastic model, relatively simpler to implement, is based on the two temperature energy balance equations supplemented by an equation tracking the lattice displacement induced by the thermal stress but without accounting for the deformation of the material.

Název v anglickém jazyce

Towards description of mechanical damage of thin molybdenum film upon pulsed laser irradiation

Popis výsledku anglicky

In this work, as a first step, we study the role of stress as a damage mechanism for a thin molybdenum film deposited on a glass substrate and irradiated by an ultrashort laser pulse using two different models: an hydrodynamic model and a thermo-elastic model. Coupled with a two-temperature model (TTM) and an equation of state, the hydrodynamical description enables us to compute the pressure and density of the solid as function of laser irradiation parameters. A Lagrangian approach was adopted to easily determine the laser-induced motion of the free surface. The thermoelastic model, relatively simpler to implement, is based on the two temperature energy balance equations supplemented by an equation tracking the lattice displacement induced by the thermal stress but without accounting for the deformation of the material.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

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

Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

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