Absolute frequency measurement of the S-2(1/2)-F-2(7/2) electric octupole transition in a single ion of Yb-171(+) with 10(-15) fractional uncertainty (New Journal of Physics, 2012)

(untitled) - King, SA; Godun, R; Webster, SA; Margolis, H; Johnson, L; Szymaniec, K; Baird, P; Gill, P