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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...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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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 |
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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 |
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