Isotopologue-selective laser cooling of molecules
Direct laser cooling of molecules has made significant progress in recent years. However, the selective cooling and manipulation of generic molecular samples based on their isotopic composition, which is ubiquitous in atomic laser cooling, has not yet been achieved. Here, we demonstrate such isotopo...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2025-01-01
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| Series: | New Journal of Physics |
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| Online Access: | https://doi.org/10.1088/1367-2630/ada3f0 |
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| author | Felix Kogel Tatsam Garg Marian Rockenhäuser Sebastián A Morales-Ramírez Tim Langen |
| author_facet | Felix Kogel Tatsam Garg Marian Rockenhäuser Sebastián A Morales-Ramírez Tim Langen |
| author_sort | Felix Kogel |
| collection | DOAJ |
| description | Direct laser cooling of molecules has made significant progress in recent years. However, the selective cooling and manipulation of generic molecular samples 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 and near-arbitrary control over the isotopic composition of a molecular beam, using barium monofluoride (BaF) as an example. The manipulation of the rare and previously uncooled ${} ^{136}\mathrm{BaF}$ is achieved in the presence of several isotopologues of significantly higher natural abundance. Our results enable intense molecular beams, high fidelity detection and manipulation 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 collisions and precision tests of fundamental symmetries. |
| format | Article |
| id | doaj-art-adba76edad6d4877a98f0dada05aabce |
| institution | Kabale University |
| issn | 1367-2630 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj-art-adba76edad6d4877a98f0dada05aabce2025-01-08T05:57:30ZengIOP PublishingNew Journal of Physics1367-26302025-01-0127101300110.1088/1367-2630/ada3f0Isotopologue-selective laser cooling of moleculesFelix Kogel0Tatsam Garg1Marian Rockenhäuser2Sebastián A Morales-Ramírez3Tim Langen4https://orcid.org/0000-0003-2561-03265. Physikalisches Institut and Center for Integrated Quantum Science and Technology, Universität Stuttgart , Pfaffenwaldring 57, 70569 Stuttgart, Germany5. Physikalisches Institut and Center for Integrated Quantum Science and Technology, Universität Stuttgart , Pfaffenwaldring 57, 70569 Stuttgart, Germany5. Physikalisches Institut and Center for Integrated Quantum Science and Technology, Universität Stuttgart , Pfaffenwaldring 57, 70569 Stuttgart, Germany; Vienna Center for Quantum Science and Technology , Atominstitut, TU Wien, Stadionallee 2, A-1020 Vienna, Austria5. Physikalisches Institut and Center for Integrated Quantum Science and Technology, Universität Stuttgart , Pfaffenwaldring 57, 70569 Stuttgart, Germany5. Physikalisches Institut and Center for Integrated Quantum Science and Technology, Universität Stuttgart , Pfaffenwaldring 57, 70569 Stuttgart, Germany; Vienna Center for Quantum Science and Technology , Atominstitut, TU Wien, Stadionallee 2, A-1020 Vienna, AustriaDirect laser cooling of molecules has made significant progress in recent years. However, the selective cooling and manipulation of generic molecular samples 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 and near-arbitrary control over the isotopic composition of a molecular beam, using barium monofluoride (BaF) as an example. The manipulation of the rare and previously uncooled ${} ^{136}\mathrm{BaF}$ is achieved in the presence of several isotopologues of significantly higher natural abundance. Our results enable intense molecular beams, high fidelity detection and manipulation 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 collisions and precision tests of fundamental symmetries.https://doi.org/10.1088/1367-2630/ada3f0cold moleculeslaser coolingmolecular beamsprecision measurement |
| spellingShingle | Felix Kogel Tatsam Garg Marian Rockenhäuser Sebastián A Morales-Ramírez Tim Langen Isotopologue-selective laser cooling of molecules New Journal of Physics cold molecules laser cooling molecular beams precision measurement |
| title | Isotopologue-selective laser cooling of molecules |
| title_full | Isotopologue-selective laser cooling of molecules |
| title_fullStr | Isotopologue-selective laser cooling of molecules |
| title_full_unstemmed | Isotopologue-selective laser cooling of molecules |
| title_short | Isotopologue-selective laser cooling of molecules |
| title_sort | isotopologue selective laser cooling of molecules |
| topic | cold molecules laser cooling molecular beams precision measurement |
| url | https://doi.org/10.1088/1367-2630/ada3f0 |
| work_keys_str_mv | AT felixkogel isotopologueselectivelasercoolingofmolecules AT tatsamgarg isotopologueselectivelasercoolingofmolecules AT marianrockenhauser isotopologueselectivelasercoolingofmolecules AT sebastianamoralesramirez isotopologueselectivelasercoolingofmolecules AT timlangen isotopologueselectivelasercoolingofmolecules |