Rostock 2019 – wissenschaftliches Programm
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MO: Fachverband Molekülphysik
MO 10: Posters 1: Cold Molecules, High Resolution Spectroscopy, and Theory
MO 10.2: Poster
Dienstag, 12. März 2019, 16:30–18:30, S Foyer LLM
Spectroscopic characterization of the a3Π←X1Σ+ and A1Π←a3Π transitions of aluminium monofluoride — Stefan Truppe1, Silvio Marx1, Sebastian Kray1, •Maximilian Doppelbauer1, Simon Hofsäss1, Hanns Christian Schewe1, Boris Sartakov2, and Gerard Meijer1 — 1Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany — 2General Physics Institute, Russian Academy of Sciences, Vavilostreet 38, 119991 Moscow, Russia
Aluminium monofluoride is proposed as an excellent candidate molecule for laser cooling and trapping. For this, detailed knowledge of the low-lying rotational levels in the involved X1Σ+, A1Π and a3Π states is necessary.
The energy levels in the X1Σ+, v = 0 state and within each Ω-manifold in the a3Π, v = 0 state are determined with a relative accuracy of a few kHz, using laser - radio-frequency multiple resonance ionization detection schemes in a jet-cooled, pulsed molecular beam.
The strength of the spin-forbidden A1Π, v = 0 ← a3Π, v = 0 transition is measured to be between six and seven orders of magnitude lower than that of the A1Π, v = 0 ← X1Σ+, v = 0 transition.