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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 26 — Dec. 24, 2007
  • pp: 17673–17680

Observation of transverse interference fringes on an atom laser beam

R. G. Dall, L. J. Byron, A. G. Truscott, G. R. Dennis, M. T. Johnsson, M. Jeppesen, and J. J. Hope  »View Author Affiliations

Optics Express, Vol. 15, Issue 26, pp. 17673-17680 (2007)

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Using the unique detection properties offered by metastable helium atoms we have produced high resolution images of the transverse spatial profiles of an atom laser beam. We observe fringes on the beam, resulting from quantum mechanical interference between atoms that start from rest at different transverse locations within the outcoupling surface and end up at a later time with different velocities at the same transverse position. Numerical simulations in the low output-coupling limit give good quantitative agreement with our experimental data.

© 2007 Optical Society of America

OCIS Codes
(020.0020) Atomic and molecular physics : Atomic and molecular physics
(020.1475) Atomic and molecular physics : Bose-Einstein condensates

ToC Category:
Atomic and Molecular Physics

Original Manuscript: October 3, 2007
Revised Manuscript: November 28, 2007
Manuscript Accepted: December 7, 2007
Published: December 12, 2007

R. G. Dall, L. J. Byron, A. G. Truscott, G. R. Dennis, M. T. Johnsson, M. Jeppesen, and J. J. Hope, "Observation of transverse interference fringes on an atom laser beam," Opt. Express 15, 17673-17680 (2007)

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