Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
Q: Fachverband Quantenoptik und Photonik
Q 60: Materiewellen und Technologie
Q 60.4: Vortrag
Freitag, 16. März 2012, 11:15–11:30, V53.01
Thick-film technology for ultra-high vacuum interfaces of micro-structured traps — •Delia Kaufmann, Thomas Collath, M. Tanveer Baig, Peter Kaufmann, Eman Asenwar, Michael Johanning, and Christof Wunderlich — Universität Siegen, NT Fakultät, Dept. Physik, 57072 Siegen, Deutschland
Miniaturized traps for ions or neutral atoms are useful tools in quantum information science. For operation, they typically need a large number of control voltages or currents, and rf or microwave fields. Furthermore, an ultra-high vacuum environment is needed for operating such traps.
In order to produce custom made ultra-high
vacuum compatible interfaces for a large number of electrical
signals, we adopt the thick-film technology [1]. These interfaces
permit voltages of hundreds of volts and currents of several amperes
and allow for very compact vacuum setups. Such printed circuits can
also be useful as pure in-vacuum devices. We demonstrate a specific
interface, which provides eleven current feedthroughs, more than 70
dc feedthroughs and a feedthrough for radio frequencies. We achieve
a pressure in the low 10−11 mbar range and demonstrate the full
functionality of the interface by trapping chains of cold ytterbium
ions, which requires the presence of all of the above mentioned
signals.
[1] D. Kaufmann, T. Collath, M. T. Baig, P. Kaufmann, E. Asenwar, M.
Johanning, C. Wunderlich, arXiv:1107.4082v1 [quant-ph] (Appl. Phys. B, in print)