Detail publikace

Spatiotemporal diagnostics of laser induced plasma of potassium gallosilicate zeolite

CAMACHO, J. VRÁBEL, J. MANZOOR, S. PÉREZ-ARRIBAS, L. DELGADO DÍAZ, S. CÁCERES, J.

Originální název

Spatiotemporal diagnostics of laser induced plasma of potassium gallosilicate zeolite

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

The present work focuses on the analysis of laser induced plasma of a zeolite sample to study its spatial and temporal evolution. Plasmas were induced by focusing a high-peak power IR CO2 pulsed laser at 10.6 μm and irradiance 6.3 GW cm−2 onto a sample under 0.01 Pa vacuum, which produced special conditions allowing the detection of species in high ionization states and velocities. In this study, high spatial, temporal and spectral resolution was obtained using imaging by an optical emission spectroscopy method, namely, laser induced breakdown spectroscopy. In addition, this work introduces the possibility of studying the early stages of plasma evolution. The induced plasma shows electronically excited neutral K, Ga, Si and O atoms and ionized K+, Ga+, Ga2+, Si+, Si2+, Si3+, O+, O2+, and O3+ species. Time-resolved two-dimensional spectra, which were also spatially resolved, were used to study the expanded distribution of some species ejected during ablation. Spatial and temporal variations of different atoms and excited ionic species are reported. Decreasing electron densities in the order of 1017 to 1016 cm−3 at 2 mm from the target surface were measured using Stark broadening in the plasma lifetime of 4 μs. The measured temperature range of electrons is 35 000 to 5800 K within the first 5 μs after initiation of optical breakdown and for the supposed local thermodynamic equilibrium of the plume at a distance of 2 mm from the target.

Klíčová slova

Laser Induced Plasma, LIP, LIBS, Zeolite-like potassium gallosilicate, spatio-temporal plasma evolution

Autoři

CAMACHO, J.; VRÁBEL, J.; MANZOOR, S.; PÉREZ-ARRIBAS, L.; DELGADO DÍAZ, S.; CÁCERES, J.

Vydáno

25. 4. 2019

Nakladatel

Royal Society of Chemistry

Místo

Great Britain

ISSN

1364-5544

Periodikum

Journal of Analytical Atomic Spectrometry

Ročník

6

Číslo

34

Stát

Spojené království Velké Británie a Severního Irska

Strany od

1247

Strany do

1255

Strany počet

9

URL

https://pubs.rsc.org/en/content/articlelanding/2019/JA/C9JA00052F#!divAbstract

BibTex

@article{BUT159095,
  author="J.J. {Camacho} and Jakub {Vrábel} and Sadia {Manzoor} and L.V. {Pérez-Arribas} and Sara {Delgado Díaz} and Jorge {Cáceres}",
  title="Spatiotemporal diagnostics of laser induced plasma of potassium gallosilicate zeolite",
  journal="Journal of Analytical Atomic Spectrometry",
  year="2019",
  volume="6",
  number="34",
  pages="1247--1255",
  doi="10.1039/C9JA00052F",
  issn="1364-5544",
  url="https://pubs.rsc.org/en/content/articlelanding/2019/JA/C9JA00052F#!divAbstract"
}