Publications associated with Laser spectroscopy

Absolute frequency measurement of the <sup>2</sup>S <inf>1/2</inf>- <sup>2</sup>F <inf>7/2</inf> electric octupole transition in a single ion of <sup>171</sup>Yb <sup>+</sup> with 10 <sup>-15</sup> fractional uncertainty

New Journal of Physics 14 (2012)

SA King, RM Godun, SA Webster, HS Margolis, LAM Johnson, K Szymaniec, PEG Baird, P Gill

An absolute frequency measurement has been made of the 2S 1/2- 2F 7/2 electric octupole transition in a single ion of 171Yb +. The implementation of a diode-based probe laser stabilized to this highly forbidden transition has resulted in an improvement of more than one order of magnitude upon the lowest published uncertainty. After correcting for systematic shifts, the frequency was determined to be 642 121 496 772 646.22(67) Hz. This corresponds to a fractional uncertainty of 1.0 × 10 -15. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.

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