Hannover 2020 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 53: SYCM: Contributed posters for the Symposium Hot topics in cold molecules: From laser cooling to quantum resonances
Q 53.3: Poster
Thursday, March 12, 2020, 16:30–18:30, Empore Lichthof
High-resolution optical spectroscopy of the a3Π and b3Σ+ states in aluminum monofluoride — •Maximilian Doppelbauer1, Silvio Marx1, Nicole Walter1, Christian Schewe1, Simon Hofsäss1, Sebastian Kray1, 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
Characterization of the triplet states of aluminum monofluoride (AlF) molecule is useful for laser cooling and trapping experiments[1].
The b3Σ+ - a3Π transition can be used for optical pumping, parity-selective detection of hyperfine levels in the a3Π state, and is a candidate for a triplet magneto-optical trap. The A1Π - a3Π transition is a possible loss channel for laser cooling on the A1Π - X1Σ+ transition.
We present the results of spectroscopic investigations involving the a3Π and b3Σ+ states and discuss their relevance for laser cooling. Spectroscopic constants are determined to high precision. This makes AlF an ideal benchmark molecule for quantum chemical calculations.
[1] Truppe et al., Phys. Rev. A 100, 052513 (2019)