High-flux beam source for cold, slow atoms or molecules

Details High-flux beam source for cold, slow atoms or molecules High-flux beam source for cold, slow atoms or molecules

2005-08-15

arxiv.org/abs/physics/0508100v2

Physics

Atomic Physics

5 Pages, 4 figures

Scientific paper

10.1103/PhysRevLett.95.173201

We demonstrate and characterize a high-flux beam source for cold, slow atoms or molecules. The desired species is vaporized using laser ablation, then cooled by thermalization in a cryogenic cell of buffer gas. The beam is formed by particles exiting a hole in the buffer gas cell. We characterize the properties of the beam (flux, forward velocity, temperature) for both an atom (Na) and a molecule (PbO) under varying buffer gas density, and discuss conditions for optimizing these beam parameters. Our source compares favorably to existing techniques of beam formation, for a variety of applications.

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