Rockenhäuser, M. K., Kogel, F., Garg, T., Morales, S., & Langen, T. (2024). Isotopologue-selective laser cooling of barium monofluoride molecules. In EGAS55: Conference of the European Group on Atomic Systems: Book of Abstracts (pp. 66–66).
E141-01 - Forschungsbereich Cold Molecules and Quantum Technologies
-
Published in:
EGAS55: Conference of the European Group on Atomic Systems: Book of Abstracts
-
Date (published):
19-Jun-2024
-
Event name:
EGAS55: Conference of the European Group on Atomic Systems (2024)
en
Event date:
16-Jun-2024 - 20-Jun-2024
-
Event place:
Granada, Spain
-
Number of Pages:
1
-
Keywords:
laser cooling of barium monofluoride (BaF) molecules
en
Abstract:
We demonstrate laser cooling of barium monofluoride (BaF) molecules, which are highly sought after for
precision measurement applications. We synthesize time-sequenced optical spectra that can be precisely tailored
to the hyperfine structure of this previously uncooled molecular species. Optimization of the optical
spectra allows us to realize strong Sisyphus laser cooling forces that can efficiently collimate a molecular
beam. Moreover, by carefully choosing the transitions involved in the cooling, we also demonstrate the first
isotopologue-selective laser cooling of molecules, selectively addressing both the 138BaF and 136BaF isotopologues
in the same molecular beam. Our results are an important step towards slowing and trapping of BaF
molecules, and will also be useful for cooling other molecular species with complex level structure.
en
Additional information:
We demonstrate laser cooling of barium monofluoride (BaF) molecules, which are highly sought after for
precision measurement applications. We synthesize time-sequenced optical spectra that can be precisely tailored
to the hyperfine structure of this previously uncooled molecular species. Optimization of the optical
spectra allows us to realize strong Sisyphus laser cooling forces that can efficiently collimate a molecular
beam. Moreover, by carefully choosing the transitions involved in the cooling, we also demonstrate the first
isotopologue-selective laser cooling of molecules, selectively addressing both the 138BaF and 136BaF isotopologues
in the same molecular beam. Our results are an important step towards slowing and trapping of BaF
molecules, and will also be useful for cooling other molecular species with complex level structure.
