Bonn 2000 – wissenschaftliches Programm
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A: Atomphysik
A 25: Fallen und Strahlkühlung
A 25.2: Vortrag
Freitag, 7. April 2000, 12:00–12:15, HS II
Manipulation and transport of cold atoms using an adaptable magnetic grating — •Peter Rosenbusch1, B.V. Hall1, I.G. Hughes2, C.V. Saba1, and E.A. Hinds1 — 1Sussex Centre for Optical and Atomic Physics, University of Sussex, Brighton BN1 9QH, UK. — 2Department of Physics, University of Durham, Durham DH1 3LE, UK.
An adaptable magnetic grating is realised by adding a bias field to a static magnetic mirror. This permits real-time manipulation of a cold atom cloud on time scales down to 100µs. Two orthogonal sinusoidal fields in quadrature generate a traveling grating of adjustable depth and velocity. This provides a new method of manipulation in which neutral atoms are transported across the surface by surfing along the moving wave.