Abstract
We have studied the temperatures of several neutral Yb isotopes in a magneto-optical trap (MOT) using the 1S0- 1P1 transition at 398.9 nm. We use a compact MOT with a titanium vacuum chamber and a high degree of othogonality between the beams. Minimum temperatures of 170 μK and 80 μK are recorded for 171Yb, and 173Yb, respectively, while 0.95 mK is measured for 172Yb. By comparison the 1D Doppler cooling temperature limit is 694 μK. The results augur well for future lattice clocks that use Yb. We comment on the significance of sub-Doppler cooling of atoms with ground-state total angular momentum F =1/2, as is the case for 171Yb. © 2014 IEEE.
Original language | English |
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Title of host publication | 2014 IEEE International Frequency Control Symposium Proceedings |
Place of Publication | Piscataway, NJ, USA |
Publisher | IEEE, Institute of Electrical and Electronics Engineers |
Pages | 218-221 |
Volume | 1 |
ISBN (Print) | 9781479949168 |
DOIs | |
Publication status | Published - 2014 |
Event | IEEE International Frequency Control Symposium, IFCS 2014 - Taiwan, Taipei, Taiwan, Province of China Duration: 19 May 2014 → 22 May 2014 Conference number: 107273 |
Conference
Conference | IEEE International Frequency Control Symposium, IFCS 2014 |
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Abbreviated title | IFCS 2014 |
Country/Territory | Taiwan, Province of China |
City | Taipei |
Period | 19/05/14 → 22/05/14 |