cw all-optical triple resonance spectroscopy

Precise Molecular Constants for the6Li2A1Σ+u–X1Σ+gSystem by Sub-Doppler Polarization Spectroscopy

“…The A 1 ⌺ u ϩ and X 1 ⌺ g ϩ states of 7 Li 2 had already been studied quite extensively by Kusch and Hessel (14), who analyzed the 7 Li 2 up to vЈ ϭ 25 and v Љ ϭ 14 in 1977. Urbanski et al (9) observed levels up to vЈ ϭ 62 in the A 1 ⌺ u ϩ state of 7 Li 2 by using all-optical triple resonance.…”

“…Accurate determination of molecular constants is especially important for the A 1 ⌺ u ϩ and X 1 ⌺ g ϩ states for the following reasons. The A 1 ⌺ u ϩ -X 1 ⌺ g ϩ transition is the most convenient system through which one can observe (1) higher lying electronic states including Rydberg states through OODR spectroscopy (2-6), and (2) the long range regions of electronic states by using multiple resonance spectroscopy (7)(8)(9). Since the lithium spin-orbit interaction is weak, the A 1 ⌺ u ϩ -X 1 ⌺ g ϩ system is less perturbed than the corresponding states in heavier alkali dimers.…”

Global analysis of data on the spin-orbit-coupledA1Σu+andBai1, Ahmed2, Beser3 et al. 2011Phys. Rev. ASelf Cite

“…There have also been a succession of studies of the A and b states of the lighter homonuclear alkali dimer species Li 2 [33][34][35][36], Na 2 [22,[37][38][39][40][41], K 2 [18,20,[42][43][44][45][46] and Rb 2 [47,48]. For Na 2 [22], data now extend almost continuously from the lowest vibrational levels to the atomic limit.…”

Precise atomic radiative lifetime via photoassociative spectroscopy of ultracold lithium

“…It may be possible to extend the number of observed lower-lying vibrational levels above those presently known by a triple-resonance technique [25], in order to extend the RKR potential higher in the well. Clearly, the lifetime analysis would also benefit from improvements in ab initio theory that focus on this range.…”