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A: Fachverband Atomphysik

A 22: Cold Molecules (with MO)

A 22.4: Vortrag

Donnerstag, 11. März 2010, 14:45–15:00, F 142

Electric trapping of molecules in a microstructured trap — •Martin Zeppenfeld¹, Barbara G.U. Englert¹, Manuel Mielenz¹, Christian Sommer¹, Josef Bayerl¹, Michael Motsch¹, Pepijn W.H. Pinkse^1,2, and Gerhard Rempe¹ — ¹Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Str. 1, 85748 Garching, Germany — ²Mesa+ Institute for Nanotechnology, University of Twente, PO Box 217, 7500 AE Enschede, The Netherlands

Optoelectrical cooling [1] is possibly the most promising method to produce sub-mK samples of a wide range of polar molecules. Here, we present the experimental realization of a key element of this scheme, a suitable electric trap for molecules. Such a trap must not only provide long lifetimes, but must also provide regions of variable homogeneous electric field to allow the required addressing of transitions between individual rotational M sublevels. In addition to cooling, such a trap might be used for precision Stark spectroscopy of trapped molecules as well as for investigation of cold collisions.

[1] M. Zeppenfeld et al., Phys. Rev. A 80, 041401(R) (2009)