Record link: 
http://hdl.handle.net/20.500.12708/199909
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Title: 
Isotopologue-selective laser cooling of barium monofluoride molecules
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Citation: 
Langen, T. (2024, July 22). Isotopologue-selective laser cooling of barium monofluoride molecules [Conference Presentation]. Cold atoms and molecules for fundamental physics conference, Cambridge, UK, United Kingdom of Great Britain and Northern Ireland (the).
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Publication Type: 
Presentation - Conference Presentation
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Language: 
English
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Authors: 
Langen, Tim 
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Organisational Unit: 
E141-01 - Forschungsbereich Cold Molecules and Quantum Technologies 
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Date (published): 
22-Jul-2024
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Event name: 
Cold atoms and molecules for fundamental physics conference 
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Event date: 
22-Jul-2024 - 24-Jul-2024
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Event place: 
Cambridge, UK, United Kingdom of Great Britain and Northern Ireland (the)
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Keywords: 
Isotopologue-selective laser
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Additional information: 
I will discuss our efforts to laser-cool 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.
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Research Areas: 
Materials Characterization: 100%
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Science Branch: 
1030 - Physik, Astronomie: 100%
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