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arXiv · 2108.02593

A New Design for a Traveling-Wave Zeeman Decelerator: II. Experiment

Tomislav Damjanovic·Stefan Willitsch·Nicolas Vanhaecke·Henrik Haak·Gerard Meijer·JeanPaul Cromieres·Dongdong Zhang
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Abstract

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 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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Tomislav Damjanovic, Stefan Willitsch, Nicolas Vanhaecke, Henrik Haak, Gerard Meijer, JeanPaul Cromieres, Dongdong Zhang. 2021-08-05. A New Design for a Traveling-Wave Zeeman Decelerator: II. Experiment. https://doi.org/10.1088/1367-2630%2Fac2c2b

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