Precision spectroscopy of the3s−3pfine-structure doublet inMg+
| Autor: | S. Knunz, Thomas Udem, Birgitta Bernhardt, Hans A. Schüssler, V. Batteiger, Theodor W. Hänsch, Ronald Holzwarth, Guido Saathoff, Tobias Wilken, Maximilian Georg Herrmann |
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| Rok vydání: | 2009 |
| Předmět: | |
| Zdroj: | Physical Review A. 80 |
| ISSN: | 1094-1622 1050-2947 |
| DOI: | 10.1103/physreva.80.022503 |
| Popis: | We apply a recently demonstrated method for precision spectroscopy on strong transitions in trapped ions to measure both fine-structure components of the $3s\text{\ensuremath{-}}3p$ transition in ${^{24}\text{M}\text{g}}^{+}$ and ${^{26}\text{M}\text{g}}^{+}$. We deduce absolute frequency reference data for transition frequencies, isotope shifts, and fine-structure splittings that in particular are 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. |
| Databáze: | OpenAIRE |
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