Accurate spectroscopy of Sr atoms

Abstract

We report the frequency measurement with an accuracy in the 100 kHz range of several optical transitions of atomic Sr : ${}^1{S}_0{-}^3{P}_1$ at 689 nm, ${}^3{P}_1{-}^3{S}_1$ at 688 nm and ${}^3{P}_0{-}^3{S}_1$ at 679 nm. Measurements are performed with a frequency chain based on a femtosecond laser referenced to primary frequency standards. They allowed the indirect determination with a 70 kHz uncertainty of the frequency of the doubly forbidden $5s^2^1S_0- 5s5p^3P_0$ transition of ${}^{87}$Sr at 698 nm and in a second step its direct observation. Frequency measurements are performed for ${}^{88}$Sr and ${}^{87}$Sr, allowing the determination of ${}^3{P}_0$, ${}^3{P}_1$ and ${}^3{S}_1$ isotope shifts, as well as the ${}^3{S}_1$ hyperfine constants.

12 pages, 16 figures

References in corpus (8)

• The fundamental constants and their variation: observational status and theoretical motivations
• New Limits to the Drift of Fundamental Constants from Laboratory Measurements
• Contrast Interferometry Using Bose-Einstein Condensates to Measure h/m and the Fine Structure Constant
• Spectroscopy of the ${}^1{S}_0-{}^3{P}_0$ Clock Transition of ${}^{87}$Sr in an Optical Lattice
• Hyperfine quenching of the metastable ${}^3{P}_{0,2}$ states in divalent atoms
• Bloch oscillations of ultracold atoms: a tool for a metrological determination of $h/m_{Rb}$
• Precision frequency measurement of visible intercombination lines of strontium
• A clock transition for a future optical frequency standard with trapped atoms

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