Hannover 2013 – scientific programme
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MO: Fachverband Molekülphysik
MO 5: Cold Molecules I
MO 5.4: Talk
Monday, March 18, 2013, 14:45–15:00, F 107
Stark deceleration of polar molecules with optimum efficiency — •Dongdong Zhang1, Nicolas Vanhaecke1,2, and Gerard Meijer1 — 1Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany — 2Laboratoire Aimé Cotton, CNRS, Université Paris-Sud, 91405 Orsay, France
Over the last two decades, several techniques have been developed and have demonstrated their ability to produce slow, cold molecular ensembles. Among them, Stark deceleration has become one of the most successful and versatile methods to study and use cold molecules [1,2].
In this work we revisit the operation of the Stark decelerator and present a new, optimized operation scheme, which substantially improves the efficiency of the decelerator at both low and high velocities, relevant for trapping experiments and collision experiments, respectively. Both experimental and simulation results show that this new mode of operation outperforms the schemes which have hitherto been in use. This new mode of operation could potentially be extented to other deceleration techniques.
[1] H. L. Bethlem, G. Berden, and G. Meijer, Phys. Rev. Lett. 83, 1558 (1999).
[2] S. Y. T. van de Meerakker, H. L. Bethlem, N. Vanhaecke and G. Meijer, Chem. Rev. 112, 4828 (2012)