Precise determination of the v and N dependence of the spin-rotation and hyperfine interactions in the CaF ground state

High-Resolution Laser Spectroscopy of YbCl: The A2Π–X2Σ+ Transition

“…Using our experimental value of ␥ in the ground state, it is possible to estimate the fractional contribution of 6p Yb to the ground state orbital if the spin-rotation splitting were caused entirely by the A 2 ⌸ 1/ 2 state. The spin-rotation splitting in ground 2 ⌺ ϩ states has been calculated in detail for several molecules (5,(21)(22)(23). If we assume that the A 2 ⌸ and X 2 ⌺ ϩ states have identical potential energy curves, and that only the 6p orbital contributes to the splitting, then we can use the unique perturber approximation.…”

Analysis and Deperturbation of the A2Π and B2Σ+ States of CaF

“…However, when those parameters were combined with those in Ref. (12) for the hyperfine part of the Hamiltonian of Eq. [1], H hfs , the predicted frequencies of the NЈ ϭ 5 4 NЉ ϭ 4 pure rotational transitions were systematically larger by ϳ40 kHz than the experimental values reported in Ref.…”

Lifetime of theA(v′=0)state and Franck-Condon factor of theA−X(0Wall1, Kanem2, Hudson3 et al. 2008Phys. Rev. A531610View full textAdd to dashboardCite

“…3: Relevant energy levels of CaF. Frequency intervals are shown in MHz and are taken from [10] and [11]. The planepolarized laser drives the A-X(0-0)Q11(1/2) transition.…”