Triple-pulse LIBS: Laser-induced breakdown spectroscopy signal enhancement by combination of pre-ablation and re-heating laser pulses

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dc.contributor.authorProchazka, Davidcs
dc.contributor.authorPořízka, Pavelcs
dc.contributor.authorNovotný, Jancs
dc.contributor.authorHrdlička, Alešcs
dc.contributor.authorNovotný, Karelcs
dc.contributor.authorŠperka, Petrcs
dc.contributor.authorKaiser, Jozefcs
dc.coverage.issue2cs
dc.coverage.volume35cs
dc.date.accessioned2021-12-02T15:54:57Z
dc.date.available2021-12-02T15:54:57Z
dc.date.issued2020-02-01cs
dc.description.abstractThe goal of this work is to examine the effect of a third additional laser pulse on orthogonal double-pulse laser-induced breakdown spectroscopy (DP LIBS). Namely, a pre-ablation laser pulse and re-heating laser pulse were combined into triple-pulse LIBS (3P LIBS) to achieve plasma emission enhancement. The experiment was designed with emphasis on causing minimal sample damage by utilizing nanosecond laser pulses. It means that the energy of ablation laser pulses was set to the minimal value for which the intensities of selected spectral lines were above the limits of detection. This energy as well as the energies of the pre-ablation and the re-heating laser pulses were kept constant for all experimental arrangements. The interpulse delays for both DP LIBS and for 3P LIBS configurations were optimized for signal enhancements. The 3P LIBS results showed up to 5-fold improvement of the signal to background ratio compared with both DP LIBS arrangements and up to 228-fold improvement in comparison to conventional SP LIBS. In addition, it has been shown that the spectral lines with a higher value of excitation energy prove higher enhancement in both DP LIBS and 3P LIBS configurations. To explain this effect, the dimensions of ablation craters were measured for each configuration using a 3D optical microscope and the temperature was determined from the slope of the Boltzmann plot. It was shown that the pre-ablation causes an increase of ablation crater dimensions and the re-heating increases the plasma temperature.en
dc.formattextcs
dc.format.extent293-300cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationJournal of Analytical Atomic Spectrometry. 2020, vol. 35, issue 2, p. 293-300.en
dc.identifier.doi10.1039/C9JA00323Acs
dc.identifier.issn1364-5544cs
dc.identifier.other162004cs
dc.identifier.urihttp://hdl.handle.net/11012/203045
dc.language.isoencs
dc.publisherThe Royal Society of Chemistrycs
dc.relation.ispartofJournal of Analytical Atomic Spectrometrycs
dc.relation.urihttps://pubs.rsc.org/en/content/articlelanding/2020/JA/C9JA00323A#!divAbstractcs
dc.rights(C) The Royal Society of Chemistrycs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1364-5544/cs
dc.subjectLIBSen
dc.subjectenhancementen
dc.subjectpre-abletionen
dc.subjectre-heatinen
dc.titleTriple-pulse LIBS: Laser-induced breakdown spectroscopy signal enhancement by combination of pre-ablation and re-heating laser pulsesen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionacceptedVersionen
sync.item.dbidVAV-162004en
sync.item.dbtypeVAVen
sync.item.insts2021.12.02 16:54:57en
sync.item.modts2021.12.02 16:15:25en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Ústav fyzikálního inženýrstvícs
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Ústav konstruovánícs
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Pokročilé instrumentace a metody pro charakterizace materiálůcs
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