Abstract
We present measurements of three distinctive state-dependent wavelengths for the clock transition in atoms. Specifically, we determine two magic wavelengths at 652.281(21) and , where the differential light shift on the clock transition vanishes, and one tune-out wavelength at , where the polarizability of the ground state exhibits a zero crossing. The two magic wavelengths are identified by spectroscopically interrogating cold atoms on the clock transition in a one-dimensional optical lattice. The ground-state tune-out wavelength is determined via a parametric heating scheme. With a simple empirical model, we then extrapolate the ground- and excited-state polarizability over a broad range of wavelengths in the visible spectrum.
5 More- Received 16 August 2023
- Accepted 1 November 2023
DOI:https://doi.org/10.1103/PhysRevA.108.053325
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