| Autor: |
C-Y, Xu, J, Singh, J C, Zappala, K G, Bailey, M R, Dietrich, J P, Greene, W, Jiang, N D, Lemke, Z-T, Lu, P, Mueller, T P, O'Connor |
| Rok vydání: |
2014 |
| Zdroj: |
Physical review letters. 113(3) |
| ISSN: |
1079-7114 |
| Popis: |
We report the first experimental determination of the hyperfine quenching rate of the 6s(2) (1)S(0)(F = 1/2) - 6s6p (3)P(0)(F = 1/2) transition in (171)Yb with nuclear spin I = 1/2. This rate determines the natural linewidth and the Rabi frequency of the clock transition of a Yb optical frequency standard. Our technique involves spectrally resolved fluorescence decay measurements of the lowest lying (3)P(0,1) levels of neutral Yb atoms embedded in a solid Ne matrix. The solid Ne provides a simple way to trap a large number of atoms as well as an efficient mechanism for populating (3)P(0). The decay rates in solid Ne are modified by medium effects including the index-of-refraction dependence. We find the (3)P(0) hyperfine quenching rate to be (4.42 ± 0.35) × 10(-2) s(-1) for free (171)Yb, which agrees with recent ab initio calculations. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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