Journal article 988 views 151 downloads
Interferometric Laser Cooling of Atomic Rubidium
Alexander Dunning,
Rachel Gregory,
James Bateman 
,
Matthew Himsworth,
Tim Freegarde
,
Matthew Himsworth,
Tim Freegarde
Physical Review Letters, Volume: 115, Issue: 7
Swansea University Author:
James Bateman
-
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DOI (Published version): 10.1103/physrevlett.115.073004
Abstract
We report the 1-D cooling of 85Rb atoms using a velocity-dependent optical force based upon Ramsey matter-wave interferometry. Using stimulated Raman transitions between ground hyperfine states, 12 cycles of the interferometer sequence cool a freely-moving atom cloud from 21 μK to 3 μK. This pulsed...
| Published in: | Physical Review Letters |
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| ISSN: | 0031-9007 1079-7114 |
| Published: |
American Physical Society (APS)
2015
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| Online Access: |
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa30578 |
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| Abstract: |
We report the 1-D cooling of 85Rb atoms using a velocity-dependent optical force based upon Ramsey matter-wave interferometry. Using stimulated Raman transitions between ground hyperfine states, 12 cycles of the interferometer sequence cool a freely-moving atom cloud from 21 μK to 3 μK. This pulsed analog of continuous-wave Doppler cooling is effective at temperatures down to the recoil limit; with augmentation pulses to increase the interferometer area, it should cool more quickly than conventional methods, and be more suitable for species that lack a closed radiative transition. |
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| College: |
Faculty of Science and Engineering |
| Issue: |
7 |