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A continuous source of translationally cold dipolar molecules

S. A. Rangwala·T. Junglen·T. Rieger·P. W. H. Pinkse·G. Rempe
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Abstract

The Stark interaction of polar molecules with an inhomogeneous electric field is exploited to select slow molecules from a room-temperature reservoir and guide them into an ultrahigh vacuum chamber. A linear electrostatic quadrupole with a curved section selects molecules with small transverse and longitudinal velocities. The source is tested with formaldehyde (H2CO) and deuterated ammonia (ND3). With H2CO a continuous flux is measured of approximately 10^9/s and a longitudinal temperature of a few K. The data are compared with the result of a Monte Carlo simulation.

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S. A. Rangwala, T. Junglen, T. Rieger, P. W. H. Pinkse, G. Rempe. 2002-12-13. A continuous source of translationally cold dipolar molecules. https://doi.org/10.1103/physreva.67.043406

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