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On the Dynamics of Transient Plasmas Generated by Nanosecond Laser Ablation of Several Metals
The dynamics of transient plasma generated by UV ns-laser ablation of selected metals (Co, Cu, Ag, Bi) were investigated by the Langmuir Probe method in angle- and time-resolved modes. Multiple ionic and electronic structures were seen for all plasmas with some corresponding to anions or nanoparticl...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8658669/ https://www.ncbi.nlm.nih.gov/pubmed/34885492 http://dx.doi.org/10.3390/ma14237336 |
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author | Irimiciuc, Stefan Andrei Chertopalov, Sergii Novotný, Michal Craciun, Valentin Lancok, Jan |
author_facet | Irimiciuc, Stefan Andrei Chertopalov, Sergii Novotný, Michal Craciun, Valentin Lancok, Jan |
author_sort | Irimiciuc, Stefan Andrei |
collection | PubMed |
description | The dynamics of transient plasma generated by UV ns-laser ablation of selected metals (Co, Cu, Ag, Bi) were investigated by the Langmuir Probe method in angle- and time-resolved modes. Multiple ionic and electronic structures were seen for all plasmas with some corresponding to anions or nanoparticle-dominated structures. The addition of an Ar atmosphere energetically confined the plasma and increased the charge density by several orders of magnitude. For pressure ranges exceeding 0.5 Pa fast ions were generated in the plasma as a result of Ar ionization and acceleration in the double layer defining the front of the plasma plume. Several correlations between the target nature plasma properties were attempted. The individual plasma structure expansion velocity increases with the melting point and decreases with the atomic mass while the corresponding charged particle densities decrease with the melting point, evidencing the relationship between the volatility of the sample and the overall abated mass. |
format | Online Article Text |
id | pubmed-8658669 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-86586692021-12-10 On the Dynamics of Transient Plasmas Generated by Nanosecond Laser Ablation of Several Metals Irimiciuc, Stefan Andrei Chertopalov, Sergii Novotný, Michal Craciun, Valentin Lancok, Jan Materials (Basel) Article The dynamics of transient plasma generated by UV ns-laser ablation of selected metals (Co, Cu, Ag, Bi) were investigated by the Langmuir Probe method in angle- and time-resolved modes. Multiple ionic and electronic structures were seen for all plasmas with some corresponding to anions or nanoparticle-dominated structures. The addition of an Ar atmosphere energetically confined the plasma and increased the charge density by several orders of magnitude. For pressure ranges exceeding 0.5 Pa fast ions were generated in the plasma as a result of Ar ionization and acceleration in the double layer defining the front of the plasma plume. Several correlations between the target nature plasma properties were attempted. The individual plasma structure expansion velocity increases with the melting point and decreases with the atomic mass while the corresponding charged particle densities decrease with the melting point, evidencing the relationship between the volatility of the sample and the overall abated mass. MDPI 2021-11-30 /pmc/articles/PMC8658669/ /pubmed/34885492 http://dx.doi.org/10.3390/ma14237336 Text en © 2021 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 Irimiciuc, Stefan Andrei Chertopalov, Sergii Novotný, Michal Craciun, Valentin Lancok, Jan On the Dynamics of Transient Plasmas Generated by Nanosecond Laser Ablation of Several Metals |
title | On the Dynamics of Transient Plasmas Generated by Nanosecond Laser Ablation of Several Metals |
title_full | On the Dynamics of Transient Plasmas Generated by Nanosecond Laser Ablation of Several Metals |
title_fullStr | On the Dynamics of Transient Plasmas Generated by Nanosecond Laser Ablation of Several Metals |
title_full_unstemmed | On the Dynamics of Transient Plasmas Generated by Nanosecond Laser Ablation of Several Metals |
title_short | On the Dynamics of Transient Plasmas Generated by Nanosecond Laser Ablation of Several Metals |
title_sort | on the dynamics of transient plasmas generated by nanosecond laser ablation of several metals |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8658669/ https://www.ncbi.nlm.nih.gov/pubmed/34885492 http://dx.doi.org/10.3390/ma14237336 |
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