Spatiotemporal diagnostics of laser induced plasma of potassium gallosilicate zeolite

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F19%3APU133564" target="_blank" >RIV/00216305:26620/19:PU133564 - isvavai.cz</a>

Result on the web

<a href="https://pubs.rsc.org/en/content/articlelanding/2019/JA/C9JA00052F#!divAbstract" target="_blank" >https://pubs.rsc.org/en/content/articlelanding/2019/JA/C9JA00052F#!divAbstract</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/C9JA00052F" target="_blank" >10.1039/C9JA00052F</a>

Result language

angličtina

Original language name

Spatiotemporal diagnostics of laser induced plasma of potassium gallosilicate zeolite

Original language description

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.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

Project

<a href="/en/project/LQ1601" target="_blank" >LQ1601: CEITEC 2020</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Analytical Atomic Spectrometry

ISSN

0267-9477

e-ISSN

1364-5544

Volume of the periodical

6

Issue of the periodical within the volume

34

Country of publishing house

GB - UNITED KINGDOM

Number of pages

9

Pages from-to

1247-1255

UT code for WoS article

000472223800017

EID of the result in the Scopus database

2-s2.0-85066945254