A continuous source of translationally cold dipolar molecules
Chemical Physics
2009-11-07 v2 General Physics
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.
Keywords
Cite
@article{arxiv.physics/0209041,
title = {A continuous source of translationally cold dipolar molecules},
author = {S. A. Rangwala and T. Junglen and T. Rieger and P. W. H. Pinkse and G. Rempe},
journal= {arXiv preprint arXiv:physics/0209041},
year = {2009}
}
Comments
4 pages, 4 figures v2: small changes in the abstract, text and references. Figures 1 & 2 regenerated to prevent errors in the pdf