University of Oulu

Tomasz J. Wasowicz, Antti Kivimäki, Matija Stupar, Marcello Coreno, Study of ultraviolet-visible fluorescence emission following resonant Auger decay of the 2p-1nl core-excited states of argon atoms, Journal of Electron Spectroscopy and Related Phenomena, Volume 226, 2018, Pages 35-40, ISSN 0368-2048,

Study of ultraviolet-visible fluorescence emission following resonant Auger decay of the 2p⁻¹ nl core-excited states of argon atoms

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Author: Wasowicz, Tomasz J.1; Kivimäki, Antti2,3; Stupar, Matija4;
Organizations: 1Department of Physics of Electronic Phenomena, Gdańsk University of Technology, ul. G. Narutowicza 11/12, 80-233, Gdańsk, Poland
2Nano and Molecular Systems Research Unit, University of Oulu, P.O. Box 3000, 90014 Oulu, Finland
3IOM-CNR, Laboratorio TASC, 34149 Trieste, Italy
4Laboratory of Quantum Optics, University of Nova Gorica, Nova Gorica, Slovenia
5ISM-CNR, LD2 Unit Basovizza Area Science Park, 34149 Trieste, Italy
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 0.6 MB)
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Language: English
Published: Elsevier, 2018
Publish Date: 2020-05-22


We have studied the excitation and relaxation of Ar⁺ ions populated in resonant Auger decay from the Ar 2p⁻¹ nl core-excited states by using ultraviolet-visible fluorescence spectroscopy and photon-photon delayed coincidence technique. Fluorescence emission yields were measured in the photon energy range of 240–255 eV for the 3s²3p⁴(¹D)5s(²D) → 3s²3p⁴(¹D)4p(²F) (393 nm) and 3s²3p⁴(¹D)4d(²F) → 3s²3p⁴(¹D)4p(²F) (335 nm) transitions as well as for the 380–500 nm wideband emission. Delayed coincidence photon decay curves for the cascade transitions of the 335/459 nm and 393/459 nm lines were measured at the four most intense Ar 2p core excitations and the coincidence yields for both studied cascade channels were obtained at these Ar 2p excitations.

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Series: Journal of electron spectroscopy and related phenomena
ISSN: 0368-2048
ISSN-E: 1873-2526
ISSN-L: 0368-2048
Volume: 226
Pages: 35 - 40
DOI: 10.1016/j.elspec.2018.05.004
Type of Publication: A1 Journal article – refereed
Field of Science: 114 Physical sciences
116 Chemical sciences
Copyright information: © 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license