Berlin 2014 – wissenschaftliches Programm
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MO: Fachverband Molekülphysik
MO 13: Posters 3: Cold Molecules, Helium Nano Droplets, and Experimental Techniques
MO 13.1: Poster
Mittwoch, 19. März 2014, 16:30–18:30, Spree-Palais
Centrifuge deceleration of electrically guided continuous beams of polar molecules — •Thomas Gantner, Sotir Chervenkov, Xing Wu, Josef Bayerl, Andreas Rohlfes, Martin Zeppenfeld, and Gerhard Rempe — Max-Planck-Institut für Quantenoptik, 85748 Garching, Germany
We present experimental results from a novel and versatile decelerator for continuous beams of neutral polar molecules [1]. A beam of polar molecules from an effusive nozzle is injected at the periphery of a rotating disk and electrically guided [2] to the centre along a spiral-shaped electrostatic quadrupole guide. Thus the molecules climb up the centrifugal potential hill and get decelerated as they propagate. The deceleration of continuous beams of neutral CF3H, CH3F, and CF3CCH is demonstrated. The combination of the centrifuge decelerator with a cryogenic buffer-gas cooling source [3] is expected to result in the production of even larger fluxes of slow and moreover internally cold molecules amenable to further cooling [4].
[1] S. Chervenkov et al., Phys. Rev. Lett. (in press), arXiv:1311.7119 (2013)
[2] S.A. Rangwala et al., Phys. Rev. A 67, 043406 (2003)
[3] L.D. van Buuren et al., Phys. Rev. Lett. 102, 033001 (2009)
[4] M. Zeppenfeld et al., Nature 491, 570 (2012)