Dynamics of reflection of ultracold atoms from a periodic one-dimensional magnetic lattice potential

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 {mu}m is generated by applying a uniform bias magnetic field to a microfabricated periodic structure on a si...

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Bibliographic Details
Published in:Physical review. A, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2009-05, Vol.79 (5), Article 053407
Main Authors: Singh, Mandip, McLean, Russell, Sidorov, Andrei, Hannaford, Peter
Format: Article
Language:English
Subjects:
ATOMS
CHROMIUM
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
COBALT ALLOYS
COMPUTERIZED SIMULATION
GADOLINIUM ALLOYS
INCIDENCE ANGLE
IRON ALLOYS
MAGNETIC FIELDS
MATERIALS SCIENCE
NICKEL
ONE-DIMENSIONAL CALCULATIONS
PERIODICITY
POTENTIALS
REFLECTION
SILICON
TERBIUM ALLOYS
THICKNESS
THIN FILMS
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Summary: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 {mu}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.
ISSN:1050-2947
1094-1622
DOI:10.1103/PhysRevA.79.053407