Phys. Rev. A 72, 032506 (2005) [7 pages]Absolute frequency measurements in Yb with 0.08 ppb uncertainty: Isotope shifts and hyperfine structure in the 399-nm 1S0→1P1 lineReceived 10 September 2004; published 23 September 2005 We apply our recent technique of using a Rb-stabilized ring-cavity resonator to measure the absolute frequencies of various isotopic components in the 399-nm 1S0→1P1 line of Yb. For the transition in 174Yb, we obtain a value of 751 525 987.761(60) MHz, representing a relative uncertainty of 0.08 ppb. We also obtain the isotope shifts and hyperfine structure with 50 kHz precision, an order-of-magnitude improvement over our earlier measurements on this line. Our earlier work had helped in resolving some discrepancies among previous measurements, and the present work further confirms those results. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.72.032506
DOI:
10.1103/PhysRevA.72.032506
PACS:
32.30.Jc, 32.10.Fn, 06.30.Ft
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