Isotopologue-selective laser cooling of molecules
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| Main Authors: | , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866918105821741056 |
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| author | Kogel, Felix Garg, Tatsam Rockenhäuser, Marian Morales-Ramírez, Sebastián A. Langen, Tim |
| author_facet | Kogel, Felix Garg, Tatsam Rockenhäuser, Marian Morales-Ramírez, Sebastián A. Langen, Tim |
| contents | Direct laser cooling of molecules has made significant progress in recent years. However, the selective cooling and manipulation of molecules based on their isotopic composition, which is ubiquitous in atomic laser cooling, has not yet been achieved. Here, we demonstrate such isotopologue-selective laser cooling of molecules, using barium monofluoride (BaF) as an example. The manipulation of the rare and previously uncooled 136BaF is achieved within a molecular beam containing several isotopologues of significantly higher natural abundance. Our results enable intense molecular beams and high fidelity detection of select low-abundance isotopologues or isotopic mixtures. Such beams are a first step towards isotopologue-selective molecular trapping and will be useful for applications in trace gas analysis, cold chemistry and precision tests of fundamental symmetries. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2406_01569 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Isotopologue-selective laser cooling of molecules Kogel, Felix Garg, Tatsam Rockenhäuser, Marian Morales-Ramírez, Sebastián A. Langen, Tim Atomic Physics Quantum Gases Chemical Physics Direct laser cooling of molecules has made significant progress in recent years. However, the selective cooling and manipulation of molecules based on their isotopic composition, which is ubiquitous in atomic laser cooling, has not yet been achieved. Here, we demonstrate such isotopologue-selective laser cooling of molecules, using barium monofluoride (BaF) as an example. The manipulation of the rare and previously uncooled 136BaF is achieved within a molecular beam containing several isotopologues of significantly higher natural abundance. Our results enable intense molecular beams and high fidelity detection of select low-abundance isotopologues or isotopic mixtures. Such beams are a first step towards isotopologue-selective molecular trapping and will be useful for applications in trace gas analysis, cold chemistry and precision tests of fundamental symmetries. |
| title | Isotopologue-selective laser cooling of molecules |
| topic | Atomic Physics Quantum Gases Chemical Physics |
| url | https://arxiv.org/abs/2406.01569 |