Publication detail

Laser-induced plasma on the boundary of two matrices

MOHAN, M. BUDAY, J. PROCHAZKA, D. GEJDOŠ, P. POŘÍZKA, P. KAISER, J.

Original Title

Laser-induced plasma on the boundary of two matrices

Type

journal article in Web of Science

Language

English

Original Abstract

In recent years, Laser-Induced Breakdown Spectroscopy (LIBS) has gained attention as a powerful technique for the elemental imaging of samples. With increasing spatial resolution and sensitivity, new challenges arise when analyzing heterogeneous samples with multiple matrices. Specifically, there is a risk of ablation at the boundary of matrices, leading to the misinterpretation of elemental maps. In this study, we investigated the behavior of plasma plumes generated on the boundary of two well-defined matrices using a combination of three-dimensional plasma imaging, spectroscopy, and Mach–Zehnder interferometry. We examined how variations in the collection optic angles with respect to the straight line defining the boundary affect the elemental distribution in plasma plumes. Consequently, the corresponding changes in signal intensities were analyzed. We also investigated the effects of slight misalignment of the optics on the measured signals. Additionally, we used Mach–Zehnder interferometry to determine the changes in electron density and to identify any changes in the plasma plume size and shape during boundary ablation. Overall, our findings provide valuable insights into the behavior of plasma plumes at the boundary of matrices and factors that need to be considered when mapping fine heterogeneous structures using LIBS.

Keywords

Laser-induced Breakdown Spectroscopy, Plasma imaging, boundary of matrices, Mach-Zehnder interferometry

Authors

MOHAN, M.; BUDAY, J.; PROCHAZKA, D.; GEJDOŠ, P.; POŘÍZKA, P.; KAISER, J.

Released

26. 9. 2023

Publisher

Royal Society of Chemistry

ISBN

1364-5544

Periodical

Journal of Analytical Atomic Spectrometry

Year of study

38

Number

1

State

United Kingdom of Great Britain and Northern Ireland

Pages from

2433

Pages to

2440

Pages count

8

URL

https://pubs.rsc.org/en/content/articlepdf/2023/ja/d3ja00135k

Full text in the Digital Library

http://hdl.handle.net/11012/214461

BibTex

@article{BUT185045,
  author="Megha {Mohan} and Jakub {Buday} and David {Prochazka} and Pavel {Gejdoš} and Pavel {Pořízka} and Jozef {Kaiser}",
  title="Laser-induced plasma on the boundary of two matrices",
  journal="Journal of Analytical Atomic Spectrometry",
  year="2023",
  volume="38",
  number="1",
  pages="8",
  doi="10.1039/d3ja00135k",
  issn="1364-5544",
  url="https://pubs.rsc.org/en/content/articlepdf/2023/ja/d3ja00135k"
}