| Zugriffsnummer | 29243 |
| Dokumenttyp | Zeitschriftenartikel |
| Sprache | Englisch |
| Titel | A high-precision segmented Paul trap with minimized micromotion for an optical multiple-ion clock |
| Autor(in); Institution |
Pyka, Karsten; QUEST Institute for Experimental Quantum Metrology, PTB-Braunschweig
Herschbach, Norbert; QUEST Institute for Experimental Quantum Metrology, PTB-Braunschweig
Keller, Jonas; QUEST Institute for Experimental Quantum Metrology, PTB-Braunschweig
Mehlstäubler, Tanja E.; QUEST Institute for Experimental Quantum Metrology, PTB-Braunschweig
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| Quelle/Jahr | Applied Physics B: 114 (2013), 1-2, 231 - 241 |
| ISSN | 0340-3793 (PRINT) ; 1432-0649 (ONLINE) |
| DOI | |
| URL | |
| Verlag | Berlin [u.a.]: Springer |
| Freie Schlagworte | Paul trap ; optical multiple-ion clock ; trap ion ; spectroscopy ; clock laser ; SNR |
| Zusammenfassung | We present a new setup to sympathetically cool 115In+ ions with 172Yb+ for optical clock spectroscopy. A first prototype ion trap made of glass-reinforced thermoset laminates was built, based on a design that minimizes axial micromotion and offers full control of the ion dynamics in all three dimensions. We detail the trap manufacturing process and the characterization of micromotion in this trap. A calibration of the photon-correlation spectroscopy technique demonstrates a resolution of 1.1 nm in motional amplitude of our measurements. With this method, we demonstrate a sensitivity to systematic clock shifts due to excess micromotion of (\\ Δν/ν)mm =7.7×10−20 along the direction of the spectroscopy laser beam. Owing to our on-board filter electronics on the ion trap chips, no rf phase shifts could be resolved at this level. We measured rf fields over a range of 400 μm along the ion trap axis and demonstrated a region of 70 μm where an optical frequency standard with a fractional inaccuracy of ≤1 × 10−18 due to micromotion can be operated. |
