Berlin 2014 – wissenschaftliches Programm

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MO: Fachverband Molekülphysik

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

MO 13.11: Poster

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

Laser cooling of heavy diatomic molecules — •Corine Meinema, Joost van den Berg, Sreekanth Mathavan, Janko Nauta, Lorenz Willmann, Klaus Jungmann, and Steven Hoekstra — Rijksuniversiteit Groningen, Groningen, the Netherlands

We will combine our travelling-wave decelerator with laser cooling to obtain a gas of ultra cold polar molecules, all in the same quantum state. After deceleration the gas of SrF molecules has a temperature of 150 mK. Laser cooling will be used to reduce this to 150 μK. Due to the complex rotational and vibrational structure, laser cooling is for most types of molecules not possible. However, SrF has an almost closed rovibrational transition, that we can use to scatter sufficient photons before the molecule will be pumped into a dark state. We will present our experimental approach and the latest results.