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Stuttgart 2012 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 35: Poster 2

Q 35.72: Poster

Mittwoch, 14. März 2012, 16:30–19:00, Poster.I+II

Trapped single ion in the focus of a deep parabolic mirror — •Andrea Golla1,2, Robert Maiwald1,2, Martin Fischer1,2, Marianne Bader1,2, Benoît Chalopin3, Markus Sondermann1,2, and Gerd Leuchs1,21Institute of Optics, Information and Photonics, University of Erlangen-Nuremberg, 91058 Erlangen, Germany — 2Max Planck Institute for the Science of Light, 91058 Erlangen, Germany — 3Laboratoire Collisions Agrégats Réactivité , Université Paul Sabatier, 31062 Toulouse, France

Trapping a single ion in the focal spot of a deep parabolic mirror provides a setup for efficient free space coupling of single ions with a suitable shaped incident light field [1]. High coupling arises from the ability of this system to illuminate the atom from nearly the complete solid angle. For this purpose we duplicated an ion trap with high optical access, a so-called stylus trap [2], and combined it with a metallic parabolic mirror.

We report the trapping of single Ytterbium ions in this trap. Especially we discuss the trap setup and show technical details of different methods of micromotion compensation and fluorescence light imaging. This setup not only promises high absorption efficiencies of light incident onto the ion but also allows for high collection efficiencies of the fluorescence light emitted by the ion. Thus, in addition we show experimental details of measuring the collection efficiency of the light emitted by a single ion.

[1] M. Sondermann et. al., Applied Physics B, 89, 489 (2007)

[2] R. Maiwald et. al., Nature Physics 5, 551 (2009)

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