Dynamics of reflection of ultracold atoms from a periodic 1D magnetic lattice potential

Details Dynamics of reflection of ultracold atoms from a periodic 1D magnetic lattice potential Dynamics of reflection of ultracold atoms from a periodic 1D magnetic lattice potential

2009-10-06

arxiv.org/abs/0910.0953v1

Phys. Rev. A 79, 053407 (2009)

Physics

Condensed Matter

Other Condensed Matter

15 pages, 11 figures

Scientific paper

10.1103/PhysRevA.79.053407

We report on an experimental study of the dynamics of the reflection of ultracold atoms from a periodic one-dimensional magnetic lattice potential. The magnetic lattice potential of period 10 \textmu m is generated by applying a uniform bias magnetic field to a microfabricated periodic structure on a silicon wafer coated with a multilayered TbGdFeCo/Cr magneto-optical film. The effective thickness of the magnetic film is about 960 nm. A detailed study of the profile of the reflected atoms as a function of externally induced periodic corrugation in the potential is described. The effect of angle of incidence is investigated in detail. The experimental observations are supported by numerical simulations.

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