Ground and First Excited States of the NaSr Molecule: Experimental and Theoretical Study
We report the first spectroscopic investigation of the NaSr molecule. Spectra related to the B(2)<sup>2</sup>Σ<sup>+</sup> → X(1)<sup>2</sup>Σ<sup>+</sup> 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)<sup>2</sup>Σ<sup>+</sup> and B(2)<sup>2</sup>Σ<sup>+</sup> states. Reliability of the employed theoretical methods was tested.
Authors
- P. Kowalczyk (ORCID: https://orcid.org/0000-0002-4483-0626)
- J. Szczepkowski (ORCID: https://orcid.org/0000-0003-4984-1663)
- Mariusz Olko
- Olivier Dulieu (ORCID: https://orcid.org/0000-0001-9498-3754)
- Marcin Gronowski (ORCID: https://orcid.org/0000-0002-7547-4548)
- W. Jastrzȩbski (ORCID: https://orcid.org/0000-0003-4935-0805)
- Romain Véxiau (ORCID: https://orcid.org/0000-0003-1705-6716)
- Michał Tomza (ORCID: https://orcid.org/0000-0003-1792-8043)
Institutions
- Centre National de la Recherche Scientifique (FR)
- Université Paris-Saclay (FR)
- Laboratoire Aimé Cotton (FR)
- University of Warsaw (PL)
- Polish Academy of Sciences (PL)
Publication Details
- Journal
- The Journal of Physical Chemistry A
- Published
- 2025-05-08
- DOI
- https://doi.org/10.1021/acs.jpca.5c01878
- Primary Topic
- Cold Atom Physics and Bose-Einstein Condensates
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Narodowe Centrum Nauki
- Infrastruktura PL-Grid