Abstract
Doppler-free saturated absorption spectroscopy is performed on an enriched radioactive sample. The spectrum of the – cycling transition at 811.8 nm is recorded, and its isotope shift between and is derived. The hyperfine coupling constants and for both the and energy levels in are also determined. The results partially disagree with a recently published measurement of the same transition. Based on earlier measurements as well as the current work, the isotope shift and hyperfine structure of the corresponding transition in are also calculated. These spectroscopic data are essential for the realization of laser trapping and cooling of .
- Received 25 November 2009
DOI:https://doi.org/10.1103/PhysRevA.83.012512
© 2011 American Physical Society