• DOI:10.1021/acs.jpca.0c00850
• Corpus ID: 211126862

Branching Ratios, Radiative Lifetimes and Transition Dipole Moments for YbOH.

@article{Mengesha2020BranchingRR,
  title={Branching Ratios, Radiative Lifetimes and Transition Dipole Moments for YbOH.},
  author={E Mengesha and Anh T. Le and Timothy C. Steimle and Lan Cheng and Chaoqun Zhang and Benjamin L. Augenbraun and Zack D. Lasner and John M. Doyle},
  journal={The journal of physical chemistry. A},
  year={2020}
}

• E. Mengesha, Anh T. Le, +5 authors J. Doyle
• Published 14 February 2020
• Physics, Chemistry
• The journal of physical chemistry. A

Medium resolution (Δν~ 3 GHz) laser-induced fluorescence (LIF) excitation spectra of a rotationally cold sample of YbOH in the 17300-17950 cm-1 range have been recorded using two-dimensional (excitation and dispersed fluorescence) spectroscopy. High resolution (Δλ~ 0.65 nm) dispersed laser induced fluorescence (DLIF) spectra and radiative decay curves of numerous bands detected in the medium resolution LIF excitation spectra were recorded. The vibronic energy levels of the X2Σ state were predicted using a discrete variable representation approach and compared with observations. The radiative decay curves were analyzed to produce fluorescence lifetimes. DLIF spectra resulting from high resolution (Δν < 10 MHz) LIF excitation of individual low-rotational lines in the A2Π1/2(000)-X2Σ((000), A2Π1/2(100)-X2Σ((000), and [17.73]Ω=0.5-X2Σ((000) bands were also recorded. The DLIF spectra were analyzed to determine branching ratios which were combined with radiative lifetimes to obtain transition dipole moments. The implications for laser cooling and trapping of YbOH are discussed.