Fast optical transport of ultracold molecules over long distances
Optically trapped laser-cooled polar molecules hold promise for new science and technology in quantum information and quantum simulation. Large numerical aperture optical access and long trap lifetimes are needed for many studies, but these requirements are challenging to achieve in a magneto-optica...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2022-01-01
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| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/ac900f |
| _version_ | 1797748388396007424 |
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| author | Yicheng Bao Scarlett S Yu Loïc Anderegg Sean Burchesky Derick Gonzalez-Acevedo Eunmi Chae Wolfgang Ketterle Kang-Kuen Ni John M Doyle |
| author_facet | Yicheng Bao Scarlett S Yu Loïc Anderegg Sean Burchesky Derick Gonzalez-Acevedo Eunmi Chae Wolfgang Ketterle Kang-Kuen Ni John M Doyle |
| author_sort | Yicheng Bao |
| collection | DOAJ |
| description | Optically trapped laser-cooled polar molecules hold promise for new science and technology in quantum information and quantum simulation. Large numerical aperture optical access and long trap lifetimes are needed for many studies, but these requirements are challenging to achieve in a magneto-optical trap (MOT) vacuum chamber that is connected to a cryogenic buffer gas beam source, as is the case for all molecule laser cooling experiments so far. Long distance transport of molecules greatly eases fulfilling these requirements as molecules are placed into a region separate from the MOT chamber. We realize a fast transport method for ultracold molecules based on an electronically focus-tunable lens combined with an optical lattice. The high transport speed is achieved by the 1D red-detuned optical lattice, which is generated by interference of a focus-tunable laser beam and a focus-fixed laser beam. Efficiency of 48(8)% is realized in the transport of ultracold calcium monofluoride (CaF) molecules over 46 cm distance in 50 ms, with a moderate heating from 32(2) μ K to 53(4) μ K. Positional stability of the molecular cloud allows for stable loading of an optical tweezer array with single molecules. |
| first_indexed | 2024-03-12T16:04:03Z |
| format | Article |
| id | doaj.art-d5c4c9d4dc0243d795925ac07faa8f2c |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:04:03Z |
| publishDate | 2022-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-d5c4c9d4dc0243d795925ac07faa8f2c2023-08-09T14:27:15ZengIOP PublishingNew Journal of Physics1367-26302022-01-0124909302810.1088/1367-2630/ac900fFast optical transport of ultracold molecules over long distancesYicheng Bao0Scarlett S Yu1Loïc Anderegg2Sean Burchesky3Derick Gonzalez-Acevedo4Eunmi Chae5Wolfgang Ketterle6Kang-Kuen Ni7John M Doyle8Department of Physics, Harvard University , Cambridge, MA 02138, United States of America; Harvard-MIT Center for Ultracold Atoms , Cambridge, MA 02138, United States of AmericaDepartment of Physics, Harvard University , Cambridge, MA 02138, United States of America; Harvard-MIT Center for Ultracold Atoms , Cambridge, MA 02138, United States of AmericaDepartment of Physics, Harvard University , Cambridge, MA 02138, United States of America; Harvard-MIT Center for Ultracold Atoms , Cambridge, MA 02138, United States of AmericaDepartment of Physics, Harvard University , Cambridge, MA 02138, United States of America; Harvard-MIT Center for Ultracold Atoms , Cambridge, MA 02138, United States of AmericaDepartment of Physics, Harvard University , Cambridge, MA 02138, United States of America; Harvard-MIT Center for Ultracold Atoms , Cambridge, MA 02138, United States of AmericaDepartment of Physics, Korea University , Seongbuk-gu, Seoul, 02841, Republic of KoreaHarvard-MIT Center for Ultracold Atoms , Cambridge, MA 02138, United States of America; Department of Physics, Massachusetts Institute of Technology , Cambridge, MA 02139, United States of AmericaDepartment of Physics, Harvard University , Cambridge, MA 02138, United States of America; Harvard-MIT Center for Ultracold Atoms , Cambridge, MA 02138, United States of America; Department of Chemistry and Chemical Biology, Harvard University , Cambridge, MA 02138, United States of AmericaDepartment of Physics, Harvard University , Cambridge, MA 02138, United States of America; Harvard-MIT Center for Ultracold Atoms , Cambridge, MA 02138, United States of AmericaOptically trapped laser-cooled polar molecules hold promise for new science and technology in quantum information and quantum simulation. Large numerical aperture optical access and long trap lifetimes are needed for many studies, but these requirements are challenging to achieve in a magneto-optical trap (MOT) vacuum chamber that is connected to a cryogenic buffer gas beam source, as is the case for all molecule laser cooling experiments so far. Long distance transport of molecules greatly eases fulfilling these requirements as molecules are placed into a region separate from the MOT chamber. We realize a fast transport method for ultracold molecules based on an electronically focus-tunable lens combined with an optical lattice. The high transport speed is achieved by the 1D red-detuned optical lattice, which is generated by interference of a focus-tunable laser beam and a focus-fixed laser beam. Efficiency of 48(8)% is realized in the transport of ultracold calcium monofluoride (CaF) molecules over 46 cm distance in 50 ms, with a moderate heating from 32(2) μ K to 53(4) μ K. Positional stability of the molecular cloud allows for stable loading of an optical tweezer array with single molecules.https://doi.org/10.1088/1367-2630/ac900fultracold moleculesoptical transporttunable lensoptical lattice |
| spellingShingle | Yicheng Bao Scarlett S Yu Loïc Anderegg Sean Burchesky Derick Gonzalez-Acevedo Eunmi Chae Wolfgang Ketterle Kang-Kuen Ni John M Doyle Fast optical transport of ultracold molecules over long distances New Journal of Physics ultracold molecules optical transport tunable lens optical lattice |
| title | Fast optical transport of ultracold molecules over long distances |
| title_full | Fast optical transport of ultracold molecules over long distances |
| title_fullStr | Fast optical transport of ultracold molecules over long distances |
| title_full_unstemmed | Fast optical transport of ultracold molecules over long distances |
| title_short | Fast optical transport of ultracold molecules over long distances |
| title_sort | fast optical transport of ultracold molecules over long distances |
| topic | ultracold molecules optical transport tunable lens optical lattice |
| url | https://doi.org/10.1088/1367-2630/ac900f |
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