Spatiotemporal spectroscopic characterization of plasmas induced by non-orthogonal laser ablation
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F20%3APU137874" target="_blank" >RIV/00216305:26620/20:PU137874 - isvavai.cz</a>
Result on the web
<a href="https://pubs.rsc.org/en/content/articlepdf/2021/AN/D0AN01996H" target="_blank" >https://pubs.rsc.org/en/content/articlepdf/2021/AN/D0AN01996H</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/D0AN01996H" target="_blank" >10.1039/D0AN01996H</a>
Alternative languages
Result language
angličtina
Original language name
Spatiotemporal spectroscopic characterization of plasmas induced by non-orthogonal laser ablation
Original language description
Ablation 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.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10305 - Fluids and plasma physics (including surface physics)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
ANALYST
ISSN
0003-2654
e-ISSN
1364-5528
Volume of the periodical
146
Issue of the periodical within the volume
3
Country of publishing house
GB - UNITED KINGDOM
Number of pages
10
Pages from-to
920-929
UT code for WoS article
000615961900019
EID of the result in the Scopus database
2-s2.0-85100627609