Quasi-Molecular Optical Transitions near Resonance Lines of Kr and Xe Atoms in Helium

The emission and absorption spectra of Kr and Xe atoms near the 1,3 P 1 – 1 S 0 resonance lines in an atmosphere of helium atoms under equilibrium conditions have been theoretically investigated. Potential curves for excited states of Kr(4 p 5 5 s ) + He and Xe(5 p 5 6 s ) + He quasi-molecules are o...

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Bibliographic Details
Published in:Optics and spectroscopy 2020-02, Vol.128 (2), p.167-171
Main Authors: Devdariani, A. Z., Zagrebin, A. L., Lednev, M. G.
Format: Article
Language:English
Subjects:
Absorption spectra
Emission spectra
Equilibrium conditions
Helium
Helium atoms
Lasers
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
Resonance
Resonance lines
Spectroscopy and Physics of Atoms and Molecules
Xenon
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Summary:The emission and absorption spectra of Kr and Xe atoms near the 1,3 P 1 – 1 S 0 resonance lines in an atmosphere of helium atoms under equilibrium conditions have been theoretically investigated. Potential curves for excited states of Kr(4 p 5 5 s ) + He and Xe(5 p 5 6 s ) + He quasi-molecules are obtained with joint application of the effective Hamiltonian and pseudopotential methods. Experimental data are used for the ground state. Based on these potential curves, the spectral profiles of quasi-molecular emission and absorption for short-wavelength wings of the resonance lines are calculated within the quasi-static approximation. The results obtained for absorption are compared with the known experimental data.
ISSN:0030-400X
1562-6911
DOI:10.1134/S0030400X20020071