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A strontium optical lattice clock with uncertainty and measurement of its absolute frequency
Richard Hobson, William Bowden, Alissa Silva +5
We present a measurement of the absolute frequency of the 5s S to 5s5p P transition in Sr, which is a secondary representation of the SI second. We descr…
A mid-infrared magneto-optical trap of metastable strontium for an optical lattice clock
Richard Hobson, William Bowden, Alvise Vianello +2
We report on the realization of a magneto-optical trap (MOT) for metastable strontium operating on the 2.92 m transition between the energy levels and $5s4…
Cavity-enhanced non-destructive detection of atoms for an optical lattice clock
Richard Hobson, William Bowden, Alvise Vianello +2
We demonstrate a new method of cavity-enhanced non-destructive detection of atoms for a strontium optical lattice clock. The detection scheme is shown to be linear in atom number u…
A pyramid MOT with integrated optical cavities as a cold atom platform for an optical lattice clock
William Bowden, Richard Hobson, Ian R. Hill +6
We realize a two-stage, hexagonal pyramid magneto-optical trap (MOT) with strontium, and demonstrate loading of cold atoms into cavity-enhanced 1D and 2D optical lattice traps, all…
Compact laser system for a laser-cooled ytterbium ion microwave frequency standard
S. Mulholland, H. A. Klein, G. P. Barwood +6
The development of a transportable microwave frequency standard based on the ground-state transition of at ~12.6 GHz requires a compact laser system for coo…
Laser-cooled ytterbium ion frequency standard
S. Mulholland, H. A. Klein, G. P. Barwood +6
We report on the development of a trapped-ion, microwave frequency standard based on the 12.6 GHz hyperfine transition in laser-cooled ytterbium-171 ions. The entire system fits in…