Spatiotemporal spectroscopic characterization of plasmas induced by non-orthogonal laser ablation

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dc.contributor.authorKépeš, Erikcs
dc.contributor.authorGornushkin, Igorcs
dc.contributor.authorPořízka, Pavelcs
dc.contributor.authorKaiser, Jozefcs
dc.coverage.issue3cs
dc.coverage.volume146cs
dc.date.issued2020-11-23cs
dc.description.abstractAblation geometry significantly affects the plasma parameters and the consequent spectroscopic observations in laser-induced breakdown spectroscopy. Nevertheless, plasmas induced by laser ablation under inclined incidence angles are studied to a significantly lesser extent compared to plasmas induced by standard orthogonal ablation. However, inclined ablation is prominent in stand-off applications, such as the Curiosity Mars rover, where the orthogonality of the ablation laser pulse cannot be always secured. Thus, in this work, we characterize non-orthogonal ablation plasmas by applying plasma imaging, tomography, and spectral measurements. We confirm earlier observations according to which non-orthogonal ablation leads to a laser-induced plasma that consists of two distinct parts: one expanding primarily along the incident laser pulse and one expanding along the normal of the sample surface. Moreover, we confirm that the former emits mainly continuum radiation, while the latter emits mainly sample-specific characteristic radiation. We further investigate and compare the homogeneity of the plasmas and report that inclined ablation affects principally the ionic emissivity of laser-induced plasmas. Overall, our results imply that the decreased fluence resulting from inclined angle ablation and the resulting inhomogeneities of the plasmas must be considered for quantitative LIBS employing non- orthogonal ablation.en
dc.formattextcs
dc.format.extent920-929cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationANALYST. 2020, vol. 146, issue 3, p. 920-929.en
dc.identifier.doi10.1039/D0AN01996Hcs
dc.identifier.issn0003-2654cs
dc.identifier.orcid0000-0002-7086-2613cs
dc.identifier.orcid0000-0002-8604-7365cs
dc.identifier.orcid0000-0002-7397-125Xcs
dc.identifier.other166109cs
dc.identifier.researcheridF-2136-2018cs
dc.identifier.researcheridG-9463-2014cs
dc.identifier.researcheridD-6800-2012cs
dc.identifier.scopus57190620988cs
dc.identifier.scopus55312098800cs
dc.identifier.scopus7402184758cs
dc.identifier.urihttp://hdl.handle.net/11012/196476
dc.language.isoencs
dc.publisherRoyal Society of Chemistrycs
dc.relation.ispartofANALYSTcs
dc.relation.urihttps://pubs.rsc.org/en/content/articlepdf/2021/AN/D0AN01996Hcs
dc.rights(C) Royal Society of Chemistrycs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/0003-2654/cs
dc.subjectlaser-induced plasmaen
dc.subjectlaser-induced breakdown spectroscopyen
dc.subjectnon-orthogonal ablationen
dc.subjectplasma tomographyen
dc.subjectRadon reconstructionen
dc.titleSpatiotemporal spectroscopic characterization of plasmas induced by non-orthogonal laser ablationen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionacceptedVersionen
sync.item.dbidVAV-166109en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:48:12en
sync.item.modts2025.01.17 15:37:45en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Ústav fyzikálního inženýrstvícs
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Pokročilé instrumentace a metody pro charakterizace materiálůcs
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