Enhancing the capture velocity of a Dy magneto-optical trap with two-stage slowing
© 2020 American Physical Society. Magneto-optical traps (MOTs) based on the 626-nm, 136-kHz-wide intercombination line of Dy, which has an attractively low Doppler temperature of 3.3μK, have been implemented in a growing number of experiments over the last several years. A challenge in loading these...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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American Physical Society (APS)
2021
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| Online Access: | https://hdl.handle.net/1721.1/134029 |
| _version_ | 1826215032557404160 |
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| author | Lunden, William Du, Li Cantara, Michael Barral, Pierre Jamison, Alan O Ketterle, Wolfgang |
| author2 | Massachusetts Institute of Technology. Research Laboratory of Electronics |
| author_facet | Massachusetts Institute of Technology. Research Laboratory of Electronics Lunden, William Du, Li Cantara, Michael Barral, Pierre Jamison, Alan O Ketterle, Wolfgang |
| author_sort | Lunden, William |
| collection | MIT |
| description | © 2020 American Physical Society. Magneto-optical traps (MOTs) based on the 626-nm, 136-kHz-wide intercombination line of Dy, which has an attractively low Doppler temperature of 3.3μK, have been implemented in a growing number of experiments over the last several years. A challenge in loading these MOTs comes from their low capture velocities. Slowed atomic beams can spread out significantly during free flight from the Zeeman slower to the MOT position, reducing the fraction of the beam captured by the MOT. Here we apply a scheme for enhancing the loading rate of the MOT wherein atoms are Zeeman slowed to a final velocity larger than the MOT's capture velocity and then undergo a final stage of slowing by a pair of near-detuned beams addressing the 421-nm transition directly in front of the MOT. By reducing the free-flight time of the Zeeman-slowed atomic beam, we greatly enhance the slowed flux delivered to the MOT, leading to more than an order-of-magnitude enhancement in the final MOT population. |
| first_indexed | 2024-09-23T16:15:41Z |
| format | Article |
| id | mit-1721.1/134029 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T16:15:41Z |
| publishDate | 2021 |
| publisher | American Physical Society (APS) |
| record_format | dspace |
| spelling | mit-1721.1/1340292023-01-20T21:22:15Z Enhancing the capture velocity of a Dy magneto-optical trap with two-stage slowing Lunden, William Du, Li Cantara, Michael Barral, Pierre Jamison, Alan O Ketterle, Wolfgang Massachusetts Institute of Technology. Research Laboratory of Electronics MIT-Harvard Center for Ultracold Atoms Massachusetts Institute of Technology. Department of Physics © 2020 American Physical Society. Magneto-optical traps (MOTs) based on the 626-nm, 136-kHz-wide intercombination line of Dy, which has an attractively low Doppler temperature of 3.3μK, have been implemented in a growing number of experiments over the last several years. A challenge in loading these MOTs comes from their low capture velocities. Slowed atomic beams can spread out significantly during free flight from the Zeeman slower to the MOT position, reducing the fraction of the beam captured by the MOT. Here we apply a scheme for enhancing the loading rate of the MOT wherein atoms are Zeeman slowed to a final velocity larger than the MOT's capture velocity and then undergo a final stage of slowing by a pair of near-detuned beams addressing the 421-nm transition directly in front of the MOT. By reducing the free-flight time of the Zeeman-slowed atomic beam, we greatly enhance the slowed flux delivered to the MOT, leading to more than an order-of-magnitude enhancement in the final MOT population. 2021-10-27T19:57:42Z 2021-10-27T19:57:42Z 2020 2021-07-09T12:03:15Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/134029 en 10.1103/PhysRevA.101.063403 Physical Review A Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society (APS) APS |
| spellingShingle | Lunden, William Du, Li Cantara, Michael Barral, Pierre Jamison, Alan O Ketterle, Wolfgang Enhancing the capture velocity of a Dy magneto-optical trap with two-stage slowing |
| title | Enhancing the capture velocity of a Dy magneto-optical trap with two-stage slowing |
| title_full | Enhancing the capture velocity of a Dy magneto-optical trap with two-stage slowing |
| title_fullStr | Enhancing the capture velocity of a Dy magneto-optical trap with two-stage slowing |
| title_full_unstemmed | Enhancing the capture velocity of a Dy magneto-optical trap with two-stage slowing |
| title_short | Enhancing the capture velocity of a Dy magneto-optical trap with two-stage slowing |
| title_sort | enhancing the capture velocity of a dy magneto optical trap with two stage slowing |
| url | https://hdl.handle.net/1721.1/134029 |
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