Experimental studies of the NaRb ground-state potential up to the v ″ = 76 level

Laser induced fluorescence spectra of the C {sup 1}{sigma}{sup +}-X {sup 1}{sigma}{sup +} system of {sup 23}Na{sup 85}Rb and {sup 23}Na{sup 87}Rb have allowed vibrational levels of the electronic ground state up to v{sup ''}=76, spanning 99.85% of the potential well to be observed. The gro...

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Bibliographic Details
Published in:Physical review. A, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2002-11, Vol.66 (5), Article 052508
Main Authors: Docenko, O., Nikolayeva, O., Tamanis, M., Ferber, R., Pazyuk, E. A., Stolyarov, A. V.
Format: Article
Language:English
Subjects:
ATOMIC AND MOLECULAR PHYSICS
DISTANCE
FLUORESCENCE
FLUORESCENCE SPECTROSCOPY
GROUND STATES
ISOTOPE EFFECTS
LASER RADIATION
LENNARD-JONES POTENTIAL
POLYNOMIALS
POTENTIAL ENERGY
RUBIDIUM 85
RUBIDIUM COMPOUNDS
SODIUM 23
SODIUM COMPOUNDS
SURFACES
VIBRATIONAL STATES
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Summary:Laser induced fluorescence spectra of the C {sup 1}{sigma}{sup +}-X {sup 1}{sigma}{sup +} system of {sup 23}Na{sup 85}Rb and {sup 23}Na{sup 87}Rb have allowed vibrational levels of the electronic ground state up to v{sup ''}=76, spanning 99.85% of the potential well to be observed. The ground-state term values have been fitted to a Dunham polynomial expansion, and also to a direct modified Lennard-Jones (MLJ) potential. The analytical MLJ construction allowed us to match previous measured term values for v{sup ''}{
ISSN:1050-2947
1094-1622
DOI:10.1103/PhysRevA.66.052508