Precision spectroscopy of the 3s-3p fine structure doublet in Mg+
Atomic Physics
2015-05-13 v1
Abstract
We apply a recently demonstrated method for precision spectroscopy on strong transitions in trapped ions to measure both fine structure components of the 3s-3p transition in 24-Mg+ and 26-Mg+. We deduce absolute frequency reference data for transition frequencies, isotope shifts and fine structure splittings that are in particular useful for comparison with quasar absorption spectra, which test possible space-time variations of the fine structure constant. The measurement accuracy improves previous literature values, when existing, by more than two orders of magnitude.
Cite
@article{arxiv.0907.0368,
title = {Precision spectroscopy of the 3s-3p fine structure doublet in Mg+},
author = {V. Batteiger and S. Knünz and M. Herrmann and G. Saathoff and H. A. Schüssler and B. Bernhardt and T. Wilken and R. Holzwarth and T. W. Hänsch and Th. Udem},
journal= {arXiv preprint arXiv:0907.0368},
year = {2015}
}