Journal
EUROPEAN PHYSICAL JOURNAL D
Volume 33, Issue 1, Pages 99-112Publisher
SPRINGER
DOI: 10.1140/epjd/e2005-00011-3
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We leave built and operated an atom interferometer of the Mach-Zehnder type. The atomic wave is a supersonic beam of lithium seeded in argon and the mirrors and beam-splitters for the atomic wave are based on elastic Bragg diffraction on laser standing waves at lambda = 671 nm. We give here a detailed description of our experimental set-up and of the procedures used to align its components. We then present experimental signals; exhibiting atomic interference effects with a very high visibility; up to 84.5 +/- 1%. We describe a series of experiments testing the sensitivity of the fringe visibility to the main alignment defects and to the magnetic field gradient.
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