Hamburg 2009 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 30: Poster II

Q 30.5: Poster

Tuesday, March 3, 2009, 16:30–19:00, VMP 9 Poster

Atom-optics and matter wave dynamics in optical dipole potentials — •Johannes Küber, Thomas Lauber, Oliver Wille, and Gerhard Birkl — Institut für Angewandte Physik, Technische Universität Darmstadt, Schlossgartenstraße 7, 64289 Darmstadt

In our experiment we aim to study and exploit the matter wave properties of Bose-Einstein condensates. We generate a BEC of Rb atoms by using a fiber laser at 1070nm to create a crossed dipole potential and cool evaporatively to quantum degeneracy. This approach gives us flexibility and independence of the magnetic properties of our atoms.

In our ongoing experiments, we aim to load ultra-cold atoms and BECs into optical waveguides and trapping potentials. We use miniaturized lens structures including microlens arrays, cylindrical lenses, and ring lenses illuminated by a red detuned laser. After coherent splitting and transport can be achieved it is possible to create integrated atom interferometers.

We also want to investigate the dynamics of wave packets in guiding potentials and superimposed one-dimensional geometries like optical lattices or Fabry-Perot structures. Our setup allows to implement these structures either by using standing waves or micro-lens structures.