Continuous Centrifuge Decelerator for Polar Molecules

Abstract

Producing large samples of slow molecules from thermal-velocity ensembles is a formidable challenge. Here we employ a centrifugal force to produce a continuous molecular beam with a high flux at near-zero velocities. We demonstrate deceleration of three electrically guided molecular species, CH${}_3$F, CF${}_3$H, and CF${}_3$CCH, with input velocities of up to $200\mathrm{m}{\mathrm{s}}^{-1}$ to obtain beams with velocities below $15\mathrm{m}{\mathrm{s}}^{-1}$ and intensities of several $10^9\mathrm{m}{\mathrm{m}}^{-2}{\mathrm{s}}^{-1}$. The centrifuge decelerator is easy to operate and can, in principle, slow down any guidable particle. It has the potential to become a standard technique for continuous deceleration of molecules.

5 pages, 4 figures; version accepted for publication in PRL

References in corpus (4)

• Sisyphus Cooling of Electrically Trapped Polyatomic Molecules
• Electrostatic extraction of cold molecules from a cryogenic reservoir
• Collisional effects in the formation of cold guided beams of polar molecules
• Ultracold Neutron Production in a Pulsed Neutron Beam Line

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