A Fully Relativistic Approach to Photon Scattering and Photoionization of Alkali Atoms

A Fully Relativistic Approach to Photon Scattering and Photoionization of Alkali Atoms

A fully relativistic approach to calculating photoionization and photon-atom scattering cross sections for quasi one-electron atoms is presented. An extensive set of photoionization cross sections have been calculated for alkali atoms: lithium, sodium, potassium, rubidium and cesium. The importance...

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Main Authors: Adam Singor, Dmitry Fursa, Igor Bray, Robert McEachran
Format: Article
Language:English
Published: MDPI AG 2021-07-01
Series:Atoms
Subjects:
rayleigh
raman
photon scattering
alkali
photoionization
Online Access:https://www.mdpi.com/2218-2004/9/3/42
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spelling doaj-e44c5fdd838c453ca94a845024489b912021-09-25T23:44:18ZengMDPI AGAtoms2218-20042021-07-019424210.3390/atoms9030042A Fully Relativistic Approach to Photon Scattering and Photoionization of Alkali AtomsAdam Singor0Dmitry Fursa1Igor Bray2Robert McEachran3Department of Physics and Astronomy, Curtin University, Perth 6102, AustraliaDepartment of Physics and Astronomy, Curtin University, Perth 6102, AustraliaDepartment of Physics and Astronomy, Curtin University, Perth 6102, AustraliaLaser Physics Centre, RSP, Australian National University, Canberra 0200, AustraliaA fully relativistic approach to calculating photoionization and photon-atom scattering cross sections for quasi one-electron atoms is presented. An extensive set of photoionization cross sections have been calculated for alkali atoms: lithium, sodium, potassium, rubidium and cesium. The importance of relativistic effects and core polarization on the depth and position of the Cooper minimum in the photoionization cross section is investigated. Good agreement was found with previous Dirac-based <i>B</i>-spline <i>R</i>-matrix calculations of Zatsarinny and Tayal and recent experimental results.https://www.mdpi.com/2218-2004/9/3/42rayleighramanphoton scatteringalkaliphotoionization
collection DOAJ
language English
format Article
sources DOAJ
author Adam Singor
Dmitry Fursa
Igor Bray
Robert McEachran
spellingShingle Adam Singor
Dmitry Fursa
Igor Bray
Robert McEachran
A Fully Relativistic Approach to Photon Scattering and Photoionization of Alkali Atoms
Atoms
rayleigh
raman
photon scattering
alkali
photoionization
author_facet Adam Singor
Dmitry Fursa
Igor Bray
Robert McEachran
author_sort Adam Singor
title A Fully Relativistic Approach to Photon Scattering and Photoionization of Alkali Atoms
title_short A Fully Relativistic Approach to Photon Scattering and Photoionization of Alkali Atoms
title_full A Fully Relativistic Approach to Photon Scattering and Photoionization of Alkali Atoms
title_fullStr A Fully Relativistic Approach to Photon Scattering and Photoionization of Alkali Atoms
title_full_unstemmed A Fully Relativistic Approach to Photon Scattering and Photoionization of Alkali Atoms
title_sort fully relativistic approach to photon scattering and photoionization of alkali atoms
publisher MDPI AG
series Atoms
issn 2218-2004
publishDate 2021-07-01
description A fully relativistic approach to calculating photoionization and photon-atom scattering cross sections for quasi one-electron atoms is presented. An extensive set of photoionization cross sections have been calculated for alkali atoms: lithium, sodium, potassium, rubidium and cesium. The importance of relativistic effects and core polarization on the depth and position of the Cooper minimum in the photoionization cross section is investigated. Good agreement was found with previous Dirac-based <i>B</i>-spline <i>R</i>-matrix calculations of Zatsarinny and Tayal and recent experimental results.
topic rayleigh
raman
photon scattering
alkali
photoionization
url https://www.mdpi.com/2218-2004/9/3/42
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