Hannover 2020 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 61: SYCM: Contributed talks for the Symposium Hot topics in cold molecules: From laser cooling to quantum resonances
Q 61.4: Talk
Friday, March 13, 2020, 14:45–15:00, e415
Spectroscopic studies of spin-forbidden transitions in aluminum monofluoride — •Maximilian Doppelbauer1, Silvio Marx1, Simon Hofsäss1, Nicole Walter1, Sebastian Kray1, Christian Schewe1, Boris Sartakov2, Jesús Pérez-Ríos1, Stefan Truppe1, and Gerard Meijer1 — 1Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany — 2General Physics Institute, Russian Academy of Sciences, Vavilovstreet 38, 119991 Moscow, Russia
Aluminum monofluoride (AlF) is an excellent candidate for laser cooling on any Q-line of the A1Π - X1Σ+ transition and trapping at high densities[1]. Narrow-line laser cooling on the spin-forbidden a3Π - X1Σ+ transition can be used to reduce the temperature further. The A1Π → a3Π decay channel can lead to losses from the optical cycle.
Prior to cooling and trapping experiments, it is necessary to measure the detailed energy level structure in the X1Σ+ electronic ground state, in the A1Π state and in the metastable a3Π state as well as the strength of the transitions between these states.
Here, we report on our investigations of the a3Π - X1Σ+ and A1Π - a3Π transitions of aluminum monofluoride.
[1] Truppe et al., Phys. Rev. A 100, 052513 (2019)