RfTrapPaper.pdf (1.76 MB)
Precise positioning of an ion in an integrated Paul trap-cavity system using radiofrequency signals
journal contribution
posted on 2023-06-09, 14:03 authored by Ezra Kassa, Hiroki TakahashiHiroki Takahashi, Costas Marios Christoforou, Matthias KellerMatthias KellerWe report a novel miniature Paul ion trap design with an integrated optical fibre cavity which can serve as a building block for a fibre-linked quantum network. In such cavity quantum electrodynamic set-ups, the optimal coupling of the ions to the cavity mode is of vital importance and this is achieved by moving the ion relative to the cavity mode. The trap presented herein features an endcap-style design complemented with extra electrodes on which additional radiofrequency voltages are applied to fully control the pseudopotential minimum in three dimensions. This method lifts the need to use three-dimensional translation stages for moving the fibre cavity with respect to the ion and achieves high integrability, mechanical rigidity and scalability. Not based on modifying the capacitive load of the trap, this method leads to precise control of the pseudopotential minimum allowing the ion to be moved with precisions limited only by the ion’s position spread. We demonstrate this by coupling the ion to the fibre cavity and probing the cavity mode profile.
History
Publication status
- Published
File Version
- Accepted version
Journal
Journal of Modern OpticsISSN
0950-0340Publisher
Taylor & FrancisExternal DOI
Issue
5-6Volume
65Page range
520-528Department affiliated with
- Physics and Astronomy Publications
Research groups affiliated with
- Atomic, Molecular and Optical Physics Research Group Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2018-07-03First Open Access (FOA) Date
2018-12-06First Compliant Deposit (FCD) Date
2018-07-02Usage metrics
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