A continuous source of translationally cold dipolar molecules

Details A continuous source of translationally cold dipolar molecules A continuous source of translationally cold dipolar molecules

2002-09-10

arxiv.org/abs/physics/0209041v2

Phys. Rev. A 67, 043406 (2003)

Physics

Chemical Physics

4 pages, 4 figures v2: small changes in the abstract, text and references. Figures 1 & 2 regenerated to prevent errors in the

Scientific paper

10.1103/PhysRevA.67.043406

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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