Dresden 2011 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 23: Poster 2: Intersectional Session
Q 23.27: Poster
Dienstag, 15. März 2011, 18:00–21:00, P1
Optical nanofibers in ion-traps — •Jan Petersen1, Benjamin Ames2, Michael Brownnutt2, Rainer Blatt2, and Arno Rauschenbeutel1 — 1Technische Universität Wien - Atominstitut, 1020 Wien, Austria — 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 for manipulating 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, in which 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 their 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 have to be minimized. We present results and discuss possibilities of coating the fibers to tackle this problem.
Financial support by ERA-Net Research Network ``Nanofibre Optical Interfaces, (NOIs)", the Volkswagen Foundation (Lichtenberg Professorship) and the ESF (EURYI Award) is gratefully acknowledged.