Heidelberg 2015 – wissenschaftliches Programm
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MO: Fachverband Molekülphysik
MO 21: Posters 4: Novelties in Molecular Physics
MO 21.17: Poster
Donnerstag, 26. März 2015, 17:00–19:00, C/Foyer
Manipulating the motion of neutral polar molecules with microwave fields — •Simon Merz1, Jack B. Graneek1, Nicolas Vanhaecke2, Gerard Meijer2,3, and Melanie Schnell1 — 1Max-Planck-Institut für Struktur und Dynamik der Materie am Center for Free-Electron Laser Science, D-22761 Hamburg — 2Fritz-Haber-Insitut der Max-Planck-Gesellschaft, D-14195 Berlin — 3Institut for Molecules and Materials at the Radboud University Nijmegen, NL-6525 AJ Nijmegen
An important remaining challenge in the field of cold molecules is a widely applicable method to manipulate the motion of neutral polar molecules in high-field-seeking states. This is a crucial step towards control of cold molecules in their ground states and of large and more complex molecules. As an alternative to the already demonstrated but discontinued alternating gradient methods, we use the interaction of polar molecules with cavity-enhanced microwave fields. Cylindrical microwave resonators provide transverse-electric field modes that are ideally suited for deceleration experiments [1-3].
Here, we present the latest results of our microwave deceleration experiments [3], using pre-decelerated packets of ammonia molecules and show first steps towards motion control of a beam of cold 4-aminobenzonitrile molecules.
[1] H. Odashima et al., Phys Rev. Lett. 104:253001 (2010).
[2] S. Merz, et al., Phys. Rev. A. 85:063411 (2012).
[3] S. Merz, et al., Mol. Phys. 111:1855-1864 (2013).