Cargando…

One-Temperature Analytical Model for Femto-/Atto-Second Laser–Metals Drilling: A Novel Approach

Recently, ultrafast lasers have been developed and potentially become a point of interest worldwide, as their interaction with matter is yet unknown and can be mediated by new physical mechanisms. Real-time experimentation requires enormous costs, and there is therefore a need to develop computation...

Descripción completa

Detalles Bibliográficos
Autores principales: Mihailescu, Cristian N., Mahmood, Muhammad Arif, Mihailescu, Natalia, Oane, Mihai
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9320566/
https://www.ncbi.nlm.nih.gov/pubmed/35888476
http://dx.doi.org/10.3390/ma15145010
_version_ 1784755823548825600
author Mihailescu, Cristian N.
Mahmood, Muhammad Arif
Mihailescu, Natalia
Oane, Mihai
author_facet Mihailescu, Cristian N.
Mahmood, Muhammad Arif
Mihailescu, Natalia
Oane, Mihai
author_sort Mihailescu, Cristian N.
collection PubMed
description Recently, ultrafast lasers have been developed and potentially become a point of interest worldwide, as their interaction with matter is yet unknown and can be mediated by new physical mechanisms. Real-time experimentation requires enormous costs, and there is therefore a need to develop computational models for this domain. By keeping in view this idea, a non-Fourier heat equation has solved the case of ultrafast laser–material interaction. Initial and boundary conditions were considered, and a one-dimensional mathematical model was presented. The simulations were compared with the experimental results for ultrashort laser–metallic sample interaction, and a close correlation was proven. It was found that the coupling of electron–phonon becomes “zero” due to short laser–material interaction time. The propagation of thermal waves was identified due to non-Fourier heat implementation. When the pulse duration increases, the variation in the thermal distribution becomes trivial due to an inverse correlation between the pulse duration and total energy within the pulse. When the laser–material interaction time decreases from fs to as, the generation of thermal waves increases and the powerful laser intensity acts as a shock wave during laser–material interaction, which causes a higher intensity of the thermal wave.
format Online
Article
Text
id pubmed-9320566
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-93205662022-07-27 One-Temperature Analytical Model for Femto-/Atto-Second Laser–Metals Drilling: A Novel Approach Mihailescu, Cristian N. Mahmood, Muhammad Arif Mihailescu, Natalia Oane, Mihai Materials (Basel) Article Recently, ultrafast lasers have been developed and potentially become a point of interest worldwide, as their interaction with matter is yet unknown and can be mediated by new physical mechanisms. Real-time experimentation requires enormous costs, and there is therefore a need to develop computational models for this domain. By keeping in view this idea, a non-Fourier heat equation has solved the case of ultrafast laser–material interaction. Initial and boundary conditions were considered, and a one-dimensional mathematical model was presented. The simulations were compared with the experimental results for ultrashort laser–metallic sample interaction, and a close correlation was proven. It was found that the coupling of electron–phonon becomes “zero” due to short laser–material interaction time. The propagation of thermal waves was identified due to non-Fourier heat implementation. When the pulse duration increases, the variation in the thermal distribution becomes trivial due to an inverse correlation between the pulse duration and total energy within the pulse. When the laser–material interaction time decreases from fs to as, the generation of thermal waves increases and the powerful laser intensity acts as a shock wave during laser–material interaction, which causes a higher intensity of the thermal wave. MDPI 2022-07-19 /pmc/articles/PMC9320566/ /pubmed/35888476 http://dx.doi.org/10.3390/ma15145010 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Mihailescu, Cristian N.
Mahmood, Muhammad Arif
Mihailescu, Natalia
Oane, Mihai
One-Temperature Analytical Model for Femto-/Atto-Second Laser–Metals Drilling: A Novel Approach
title One-Temperature Analytical Model for Femto-/Atto-Second Laser–Metals Drilling: A Novel Approach
title_full One-Temperature Analytical Model for Femto-/Atto-Second Laser–Metals Drilling: A Novel Approach
title_fullStr One-Temperature Analytical Model for Femto-/Atto-Second Laser–Metals Drilling: A Novel Approach
title_full_unstemmed One-Temperature Analytical Model for Femto-/Atto-Second Laser–Metals Drilling: A Novel Approach
title_short One-Temperature Analytical Model for Femto-/Atto-Second Laser–Metals Drilling: A Novel Approach
title_sort one-temperature analytical model for femto-/atto-second laser–metals drilling: a novel approach
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9320566/
https://www.ncbi.nlm.nih.gov/pubmed/35888476
http://dx.doi.org/10.3390/ma15145010
work_keys_str_mv AT mihailescucristiann onetemperatureanalyticalmodelforfemtoattosecondlasermetalsdrillinganovelapproach
AT mahmoodmuhammadarif onetemperatureanalyticalmodelforfemtoattosecondlasermetalsdrillinganovelapproach
AT mihailescunatalia onetemperatureanalyticalmodelforfemtoattosecondlasermetalsdrillinganovelapproach
AT oanemihai onetemperatureanalyticalmodelforfemtoattosecondlasermetalsdrillinganovelapproach