Atom gratings produced by large angle atom beam splitters

Details Atom gratings produced by large angle atom beam splitters Atom gratings produced by large angle atom beam splitters

2001-05-16

arxiv.org/abs/physics/0105047v2

Physics

Atomic Physics

16 pages, 7 figures

Scientific paper

10.1103/PhysRevA.64.063612

An asymptotic theory of atom scattering by large amplitude periodic potentials is developed in the Raman-Nath approximation. The atom grating profile arising after scattering is evaluated in the Fresnel zone for triangular, sinusoidal, magneto-optical, and bichromatic field potentials. It is shown that, owing to the scattering in these potentials, two \QTR{em}{groups} of momentum states are produced rather than two distinct momentum components. The corresponding spatial density profile is calculated and found to differ significantly from a pure sinusoid.

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