Berlin 2014 – wissenschaftliches Programm

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MO: Fachverband Molekülphysik

MO 13: Posters 3: Cold Molecules, Helium Nano Droplets, and Experimental Techniques

MO 13.8: Poster

Mittwoch, 19. März 2014, 16:30–18:30, Spree-Palais

Deceleration and deflection of cold Hydrogen molecules by a Rydberg Stark decelerator — •Johannes Deiglmayr, Pitt Allmendinger, Joseph Agner, and Frédéric Merkt — ETH Zurich, Laboratory of Physical Chemistry, Zurich, Switzerland

In the past years our group developed a miniature decelerator for atoms and molecules in Rydberg-Stark-states [1]. It consists of a two-dimensional array of electrodes on a printed circuit board which creates weak electric fields with large field gradients, making the deceleration of atoms and molecules in Rydberg states with high n possible.

Recently we have realized a bent version of our decelerator which deflects the decelerated beam by 10° from the axis of supersonic expansion. The deflected samples of atoms and molecules have translational temperatures on the order of 100mK, which makes them ideally suited for trapping or collision experiments. We will present these results and the current status of the experiment.

[1] S. D. Hogan et al., PRL 108), 063008 (2012); P. Allmendinger et al., PRA 88, 043433 (2013)