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Direct excitation of the forbidden clock transition in neutral 174Yb atoms confined to an optical lattice
Zeb W. Barber, Chad W. Hoyt, Chris W. Oates +3
We report direct single-laser excitation of the strictly forbidden (6s^2)^1S_0 -(6s6p)^3P_0 clock transition in the even 174Yb isotope confined to a 1D optical lattice. A small (~1…
Magnetic field-induced spectroscopy of forbidden optical transitions with application to lattice-based optical atomic clocks
A. V. Taichenachev, V. I. Yudin, C. W. Oates +3
We develop a method of spectroscopy that uses a weak static magnetic field to enable direct optical excitation of forbidden electric-dipole transitions that are otherwise prohibiti…
Observation and absolute frequency measurements of the 1S0 - 3P0 optical clock transition in ytterbium
C. W. Hoyt, Z. W. Barber, C. W. Oates +3
We report the direct excitation of the highly forbidden (6s^2) 1S0 - (6s6p) 3P0 optical transition in two odd isotopes of ytterbium. As the excitation laser frequency is scanned, a…