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Article Dans Une Revue The European Physical Journal D : Atomic, molecular, optical and plasma physics Année : 2005

Accurate spectroscopy of Sr atoms

Résumé

We report the frequency measurement with an accuracy in the 100 kHz range of several optical transitions of atomic Sr : $^1S_0- ^3P_1$ at 689 nm, $^3P_1- ^3S_1$ at 688 nm and $^3P_0- ^3S_1$ 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 $^3P_0$, $^3P_1$ and $^3S_1$ isotope shifts, as well as the $^3S_1$ hyperfine constants.

Dates et versions

hal-00016398 , version 1 (03-01-2006)

Identifiants

Citer

Irene Courtillot, Audrey Quessada-Vial, Anders Brusch, Dmitri Kolker, Giovanni D. Rovera, et al.. Accurate spectroscopy of Sr atoms. The European Physical Journal D : Atomic, molecular, optical and plasma physics, 2005, 33, pp.161. ⟨10.1140/epjd/e2005-00058-0⟩. ⟨hal-00016398⟩
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