Two-photon Doppler-free spectroscopy of the $6s^2{}^1{S}_0\to 6s23s{}^1{S}_0$ Rydberg transition for quantum sensing in ytterbium

Benjamin D. Hunt, Kyle Beloy, Roger C. Brown +5

Here we report atomic structure calculations and experimental observations of the two-photon $6s^2{}^1{S}_0\to 6s23s{}^1{S}_0$ transition in Yb. The unique level structure of…