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München 2004 – wissenschaftliches Programm

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MO: Molekülphysik

MO 2: Experimentelle Techniken, Kalte Moleküle

MO 2.4: Vortrag

Montag, 22. März 2004, 12:15–12:30, HS 332

Generation of cold atoms and molecules by a rotating nozzle: recent progress — •D.H. Meyer, N.-N. Liu, and H.J. Loesch — Fakultaet fuer Physik, Universitaet Bielefeld, Universitaetsstrasse 25, D-33615 Bielefeld

The rotating nozzle is an universal mechanical device to create a (quasi) continuous beam of cold atoms and molecules. To date we have achieved a Xe-beam featuring a most probable velocity of 40 m/s at a parallel translational temperature of T(par) =10.4 K and 20 at 20 m/s. Similar results have been obtained also for Kr. Modifications of the apparatus are being realized presently with the aim to lower the peak velocity further and to exploit the cold atoms as carrier gases for polar molecules. We will report on the results of these activities and on first experiments about the manipulation of the cold molecules by inhomogeneous electric fields. The applicability of the rotating nozzle for the continuous storage of molecules in a ring trap will be discussed.

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