Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
Q: Fachverband Quantenoptik und Photonik
Q 42: Poster: Quantum Optics and Photonics II
Q 42.22: Poster
Mittwoch, 13. März 2019, 16:15–18:15, S Atrium Informatik
Operation of a Microfabricated Planar Ion-trap for Studies of a Yb+– Rb Hybrid Quantum System — Abasalt Bahrami1, •Matthias Müller1, Martin Drechsler1, Jannis Joger2, Rene Gerritsma2, and Ferdinand Schmidt-Kaler1 — 1QUANTUM, Institut für Physik, Universität Mainz, Staudingerweg 7, 55128 Mainz — 2Van der Waals-Zeeman Institute, Institute of Physics, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
In order to study interactions of atomic ions with ultracold neutral atoms, it is important to have sub-µm control over positioning ion crystals. Serving for this purpose, we introduce a microfabricated planar ion trap featuring 21 DC electrodes. The ion trap is controlled by a home-made FPGA voltage source providing independently variable voltages to each of the DC electrodes. To assure stable positioning of ion crystals with respect to trapped neutral atoms, we integrate into the overall design a compact mirror magneto optical chip trap (mMOT) for cooling and confining neutral 87Rb atoms. The trapped atoms will be transferred into an also integrated chip-based Ioffe-Pritchard trap potential formed by a Z-shape wire and an external bias magnetic field. We introduce the hybrid atom-ion chip, the microfabricated planar ion trap and use trapped ion crystals to determine ion lifetimes, trap frequencies, positioning ions and the accuracy of the compensation of micromotion.