Vibronic branching ratios for nearly closed rapid photon cycling of SrOH
Abstract
The vibrational branching ratios of SrOH for radiative decay to the ground electronic state, X 2Σ+ , from the first two electronically excited states, A 2Π and B 2Σ+ , are determined experimentally at the ∼10−5 level. The observed small branching ratios enable the design of a full, practical laser-cooling scheme, including magnetooptical trapping and sub-Doppler laser cooling, with >104 photon scatters per molecule. Ab initio calculations sensitive to weak vibronic transitions are performed to facilitate the experimental measurement and analysis, and show good agreement with the experiment.
- Publication:
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Physical Review A
- Pub Date:
- August 2022
- DOI:
- 10.1103/PhysRevA.106.L020801
- arXiv:
- arXiv:2205.11381
- Bibcode:
- 2022PhRvA.106b0801L
- Keywords:
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- Physics - Atomic Physics
- E-Print:
- 6 pages, 3 figures, 3 tables