Ground and First Excited States of the NaSr Molecule: Experimental and Theoretical Study
Jacek Szczepkowski, Marcin Gronowski, Matylda Olko, Romain Vexiau, Michał Tomza, Olivier Dulieu, Paweł Kowalczyk, Włodzimierz Jastrzebski
TL;DR
This paper studies the NaSr molecule's ground and first excited states using experiments and theory.
Contribution
The first spectroscopic investigation of the NaSr molecule and its electronic states is presented.
Findings
Spectra of the B(2)2Σ+ → X(1)2Σ+ transition were observed with partial rotational resolution.
Potential energy curves and transition dipole moments were calculated using two theoretical approaches.
Molecular constants of the X(1)2Σ+ and B(2)2Σ+ states were deduced from experimental and theoretical comparisons.
Abstract
We report the first spectroscopic investigation of the NaSr molecule. Spectra related to the B(2)2Σ+ → X(1)2Σ+ transition were observed with partial rotational resolution by thermoluminescence and laser-induced fluorescence techniques. Simultaneously, potential energy curves of the lowest electronic states of NaSr and transition dipole moments were calculated by using two different theoretical approaches. Comparison with theoretical results allowed to interpret the experimental spectra and deduce the salient molecular constants of the X(1)2Σ+ and B(2)2Σ+ states. Reliability of the employed theoretical methods was tested.
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Taxonomy
TopicsCold Atom Physics and Bose-Einstein Condensates · Advanced Chemical Physics Studies · Molecular Junctions and Nanostructures