A Molecular Beam Study of the (0,0) A2\Pi <- X2\Sigma+ Band of CaF Isotopologues
A Molecular Beam Study of the (0,0) A2\Pi <- X2\Sigma+ Band of CaF Isotopologues
This study presents an experimental determination of spectroscopic parameters for the less-abundant isotopologues $^{42}$CaF and $^{44}$CaF, alongside $^{40}$CaF, using high-resolution laser-induced fluorescence spectroscopy in a skimmed free jet expansion. We recorded spectra near the natural linewidth limit and derived spectroscopic constants for both the $X^2\Sigma^+$ and $A^2\Pi$ electronic states, including the fine and $^{19}$F magnetic hyperfine parameters. We also estimated the isotope amount ratio $r(^{44}\mathrm{Ca}/^{40}\mathrm{Ca})$, demonstrating the potential use of optical spectroscopy for calcium isotope analysis.
Termeh Bashiri、Phelan Yu、Nicholas R. Hutzler、Timothy C. Steimle、Carlos Abad、Mitchio Okumura
California Institute of Technology, Pasadena, USACalifornia Institute of Technology, Pasadena, USACalifornia Institute of Technology, Pasadena, USACalifornia Institute of Technology, Pasadena, USABundesanstalt für Materialforschung und -prüfungCalifornia Institute of Technology, Pasadena, USA
物理学
Termeh Bashiri,Phelan Yu,Nicholas R. Hutzler,Timothy C. Steimle,Carlos Abad,Mitchio Okumura.A Molecular Beam Study of the (0,0) A2\Pi <- X2\Sigma+ Band of CaF Isotopologues[EB/OL].(2025-05-05)[2025-06-08].https://arxiv.org/abs/2505.03045.点此复制
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