Düsseldorf 2007 – scientific programme

Parts | Days | Selection | Search | Downloads | Help

Q: Fachverband Quantenoptik und Photonik

Q 63: Poster Ultrakalte Moleküle

Q 63.1: Poster

Thursday, March 22, 2007, 16:30–18:30, Poster C

Forming Ultracold Polar Molecules in the Rovibrational Ground State — •Christian Glück, Jörg Lange, Johannes Deiglmayr, Stephan Kraft, Leif Vogel, Benjamin Müller, Christian Giese, Peter Staanum, Roland Wester, and Matthias Weidemüller — Physikalisches Institut, Universität Freiburg, 79104 Freiburg, Germany

Recently, the spontaneous formation of ultracold LiCs molecules in a double MOT was observed for the first time in our group [1]. LiCs possesses the strongest permanent electric dipole moment of all alkali dimers and is therefore a promising candidate to study an ultracold gas with strong externally tunable interactions.
Here we present the formation of ultracold LiCs ground state molecules by active photoassociation, leading to a strongly increased production rate. In order to transfer the molecules in the rovibrational ground state we have developed a Raman-type relaxation scheme using potential curves from new high resolution sprectroscopy of LiCs [2]. Furthermore, we present experimental details which focus on the locking scheme of the photoassociation laser and an enhanced setup for storing the molecules in a crossed dipole trap.

[1] S. D. Kraft et al., J. Phys. B 39, S 993 (2006)

[2] P. Staanum et al., arXiv/physics/0612031