Publication: High-Flux Beam Source for Cold, Slow Atoms or Molecules
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Date
2005
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American Physical Society (APS)
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Maxwell, S. E., N. Brahms, R. deCarvalho, D. R. Glenn, J. S. Helton, S. V. Nguyen, D. Patterson, J. Petricka, D. DeMille, and J. M. Doyle. 2005. High-Flux Beam Source for Cold, Slow Atoms or Molecules. Physical Review Letters 95, no. 17. doi:10.1103/physrevlett.95.173201.
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Abstract
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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