A new design for a traveling-wave Zeeman decelerator: II. Experiment

Autor: Tomislav Damjanović, Stefan Willitsch, Nicolas Vanhaecke, Henrik Haak, Gerard Meijer, JeanPaul Cromiéres, Dongdong Zhang
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: New Journal of Physics, Vol 23, Iss 10, p 105007 (2021)
Druh dokumentu: article
ISSN: 1367-2630
DOI: 10.1088/1367-2630/ac2c2b
Popis: A novel traveling-wave Zeeman decelerator based on a double-helix coil geometry capable of decelerating paramagnetic molecules with high efficiency is presented. Moving magnetic traps are generated by applying time-dependent currents through the decelerator coils. Paramagnetic molecules in low-field-seeking Zeeman states are confined inside the moving traps which are decelerated to lower forward velocities. As a prototypical example, we demonstrate the deceleration of OH radicals from an initial velocity of 445 m s ^−1 down to various final velocities. The experimental results are analyzed and numerically reproduced with the help of trajectory simulations confirming the phase-space stability and efficiency of the deceleration of the molecules in the new device.
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