C. Baynham

We present a measurement of the absolute frequency of the 5s $^{2}$ $^{1}$ S $_{0}$ to 5s5p $^{3}$ P $_{0}$ transition in $^{87}$ Sr, which is a secondary representation of the SI second. We descr…

physics.atom-ph2017★ 32 cited

Absolute frequency measurement of the $^{2}$ S $_{1/2} \to^{2}$ F $_{7/2}$ optical clock transition in $^{171}$ Yb $^{+}$ with an uncertainty of $4 \times 1 0^{- 16}$ using a frequency link to International Atomic Time

Charles F. A. Baynham, Rachel M. Godun, Jonathan M. Jones +8

The highly forbidden $^{2}$ S $_{1/2} \to^{2}$ F $_{7/2}$ electric octupole transition in $^{171}$ Yb $^{+}$ is a potential candidate for a redefinition of the SI second. We present a…

A strontium optical lattice clock with 1×10−17 uncertainty and measurement of its absolute frequency

Absolute frequency measurement of the 2S1/2​→2F7/2​ optical clock transition in 171Yb+ with an uncertainty of 4×10−16 using a frequency link to International Atomic Time

A strontium optical lattice clock with $1 \times 1 0^{- 17}$ uncertainty and measurement of its absolute frequency

Absolute frequency measurement of the $^{2}$ S $_{1/2} \to^{2}$ F $_{7/2}$ optical clock transition in $^{171}$ Yb $^{+}$ with an uncertainty of $4 \times 1 0^{- 16}$ using a frequency link to International Atomic Time