Hannover 2010 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 55: Poster II
Q 55.52: Poster
Donnerstag, 11. März 2010, 16:00–19:00, Lichthof
Optical nanofibers in ion-traps — •Jan Petersen1, Rainer Blatt2, Michael Brownnutt2, and Arno Rauschenbeutel1 — 1QUANTUM, Institut für Physik, Johannes Gutenberg-Universität Mainz, 55099 Mainz, Germany — 2Institut für Experimentalphysik, Unversität Innsbruck, 6020 Innsbruck, Austria
Atoms and molecules can be efficiently coupled to the intense evanescent light field around optical nanofibers. Such nanofibers are realised from standard optical fibers in a heat and pull process to produce a waist with a diameter of several 100 nm. Ion traps, on the other hand, are one of the most successful systems to entangle and manipulate single particles. Trapped ions can be confined for long durations and by tuning the electric trapping potentials one can adjust their position with a precision of a few nanometers.
We are planning to profit from the advantageous properties of both systems and set up an experiment, where an optical nanofiber is integrated in an ion trap. With this setup one could probe the evanescent light field with an ion and also use the optical nanofiber to efficiently excite the ions and to collect its fluorescence. As the ion will have to be placed in close vicinity of the nanofiber surface (around 100 nm), charging effects of the fiber surface are a serious issue. We present and discuss possibilities of coating the fibers to tackle these problems.
Financial support by the ERA-Net Research Network "Nanofibre Optical Interfaces, (NOIs)", the Volkswagen Foundation (Lichtenberg Professorship) and the ESF (EURYI Award) is gratefully acknowledged.