| Zugriffsnummer | 33935 |
| Dokumenttyp | Zeitschriftenartikel |
| Peer Review | unbekannt |
| Sprache | Englisch |
| Titel | Precision isotope shift measurements in Ca+ using highly sensitive detection schemes |
| Autor(in); Institution |
Gebert, Florian; QUEST Institute for Experimental Quantum Metrology, PTB-Braunschweig
Wan, Yong; QUEST Institute for Experimental Quantum Metrology, PTB-Braunschweig
Wolf, Fabian; QUEST Institute for Experimental Quantum Metrology, PTB-Braunschweig
Angstmann, Christopher N.; University of New South Wales, Sydney, AUSTRALIA
Berengut, Julian C.; University of New South Wales, Sydney, AUSTRALIA
Schmidt, Piet O.; QUEST Institute for Experimental Quantum Metrology, PTB-Braunschweig
|
| Quelle/Jahr | Physical Review Letters: 115 (2015), 3, 053003-1 - 053003-5 |
| ISSN | 0031-9007 (PRINT) ; 1079-7114 (ONLINE) |
| Verlag | Ridge, NY: American Physical Society |
| Freie Schlagworte | trapped ion ; spectroscopy ; isotophe shift |
| Zusammenfassung | We demonstrate an efficient high-precision optical spectroscopy technique for single trapped ions with non-closed transitions. In a double-shelving technique, the absorption of a single photon is first amplified to several phonons of a normal motional mode shared with a co-trapped cooling ion of a different species, before being further amplified to thousands of fluorescence photons emitted by the cooling ion using the standard electron shelving technique. We employ this extension of the photon recoil spectroscopy technique to perform the first high precision absolute frequency measurement of the 2D3/2 → 2P1/2 transition in 40Ca+, resulting in a transition frequency of f=346000234867(96) kHz. Furthermore, we determine the isotope shift of this transition and the 2S1/2 → 2P1/2 transition for 42Ca+, 44Ca+ and 48Ca+ ions relative to 40Ca+ with an accuracy below 100 kHz. Improved field and mass shift constants of these transitions as well as changes in mean square nuclear charge radii are extracted from this high resolution data. |
