Hannover 2010 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 55: Poster II

Q 55.2: Poster

Thursday, March 11, 2010, 16:00–19:00, Lichthof

BEC and atom-optics in optical waveguides — •Johannes Küber, Thomas Lauber, Oliver Wille, Martin Hasch, and Gerhard Birkl — Institut für Angewandte Physik, Technische Universität Darmstadt, Schlossgartenstraße 7, 64289 Darmstadt

In our experiment we aim to study and control the properties of Bose-Einstein condensates in optical potentials. We use a crossed dipole trap at 1070nm to prepare up to 25000 condensed Rb atoms. This approach gives us the advantage of being independent of the magnetic properties of our atoms.

After previous experiments with ultra-cold thermal atoms in optical waveguide structures we are going to work with condensed matter in optical potentials. Using miniaturized lens structures we are able to implement attractive or repulsive potentials in different geometries.

Our approach allows us to combine multiple potentials to create complex structures like a one-dimensional resonator for guided atoms or a ring shaped waveguide. For controlled manipulation of atoms, such as accelerating and coherent splitting, we use a blue detuned one dimensional optical lattice and achieve a versatile setup for coherent matter wave manipulation.