Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium (EFTF/IFCS)

Rydberg spectroscopy for DC stark shift characterisation in optical lattice clocks

William Bowden, Richard Hobson, Patrick Robert Gill, Ian R. Hill, Paul H. Huillery, M. P. A. Jones

Published Jul 1, 2017• 1 citation

Publisher

Abstract

The DC Stark shift resulting from uncharacterized electric fields can compromise the accuracy of optical lattice clocks. We report on a new method to characterize these residual electric fields using Rydberg states. By performing electromagnetically induced transparency (EIT) spectroscopy to measure the quadratic Stark shifts of the 5s75d1D2mJ= 0, ±1, ±2 states in strontium, we constrain the DC Stark shift of the clock transition to below 1 × 10−18.

DOI: 10.1109/fcs.2017.8088831

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