Imaging Optical Frequencies with 100 μhz Precision and 1.1 μ m Resolution

G. Edward Marti, Ross B. Hutson, Akihisa Goban, Sara L. Campbell, Nicola Poli, Jun Ye

Research output: Contribution to journalArticlepeer-review

129 Citations (Scopus)


We implement imaging spectroscopy of the optical clock transition of lattice-trapped degenerate fermionic Sr in the Mott-insulating regime, combining micron spatial resolution with submillihertz spectral precision. We use these tools to demonstrate atomic coherence for up to 15 s on the clock transition and reach a record frequency precision of 2.5×10-19. We perform the most rapid evaluation of trapping light shifts and record a 150 mHz linewidth, the narrowest Rabi line shape observed on a coherent optical transition. The important emerging capability of combining high-resolution imaging and spectroscopy will improve the clock precision, and provide a path towards measuring many-body interactions and testing fundamental physics.

Original languageEnglish
Article number103201
JournalPhysical Review Letters
Issue number10
Publication statusPublished - 2018 Mar 5
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy


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