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Slow ammonia molecules in an electrostatic quadrupole guide

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Abstract.

An electrostatic quadrupole is used to filter slow dipolar ND3 molecules from an effusive source and to guide them into ultrahigh vacuum. The molecules in the electrostatic quadrupole experience a Stark interaction which allows filtering of small velocities in the linear and bent sections of the quadrupole. With this technique we demonstrate a flux of \(\approx 10^{10}\)/s with a longitudinal temperature of a few K. The technique and the set-up are discussed in detail, and the guided gas as well as the output beam are characterized. Improvements in the set-up are highlighted, as for instance cooling of the effusive source to below 150 K.

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Authors and Affiliations

  1. Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Str. 1, 85748, Garching, Germany

    T. Junglen, T. Rieger, S. A. Rangwala, P. W. H. Pinkse & G. Rempe

Authors
  1. T. Junglen
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  2. T. Rieger
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  3. S. A. Rangwala
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  4. P. W. H. Pinkse
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  5. G. Rempe
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Corresponding author

Correspondence to P. W. H. Pinkse.

Additional information

Received: 1 July 2004, Published online: 28 September 2004

PACS:

33.55.Be Zeeman and Stark effects - 39.10. + j Atomic and molecular beam sources and techniques

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Junglen, T., Rieger, T., Rangwala, S.A. et al. Slow ammonia molecules in an electrostatic quadrupole guide. Eur. Phys. J. D 31, 365–373 (2004). https://doi.org/10.1140/epjd/e2004-00130-3

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  • DOI: https://doi.org/10.1140/epjd/e2004-00130-3

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