Accurate spectroscopy of Sr atoms
Atomic Physics
2009-11-10 v2
Abstract
We report the frequency measurement with an accuracy in the 100 kHz range of several optical transitions of atomic Sr : at 689 nm, at 688 nm and 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 Sr at 698 nm and in a second step its direct observation. Frequency measurements are performed for Sr and Sr, allowing the determination of , and isotope shifts, as well as the hyperfine constants.
Cite
@article{arxiv.physics/0410108,
title = {Accurate spectroscopy of Sr atoms},
author = {Irene Courtillot and Audrey Quessada-Vial and Anders Brusch and Dmitri Kolker and Giovanni D. Rovera and Pierre Lemonde},
journal= {arXiv preprint arXiv:physics/0410108},
year = {2009}
}
Comments
12 pages, 16 figures