SAMOP 2023 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 20: Poster II
A 20.3: Poster
Mittwoch, 8. März 2023, 16:30–19:00, Empore Lichthof
Blue-detuned painted optical potentials for microgravity applications — •Kai Frye-Arndt1,2, Holger Ahlers2, Waldemar Herr2, Christian Schubert2, Ernst Rasel1, and the BECCAL Team1,2,3,4,5,6,7,8,9,10 — 1Leibniz Universität Hannover — 2DLR-SI, Hannover — 3Universität Ulm — 4FBH Berlin — 5HU, Berlin — 6JGU, Mainz — 7ZARM, Universität Bremen — 8DLR-QT, Ulm — 9DLR-SC, Braunschweig — 10Universität Hamburg
Steering a far-off-resonance laser beam to create arbitrarily shaped optical potentials can provide great flexibility for manipulating ultracold atoms. However, experiments are often disturbed by gravity induced dynamics or by levitation techniques, which introduce residual electromagnetic fields, limit the trapping volumes or restricting the choice of species. The Bose-Einstein and Cold Atom Laboratory (BECCAL) will enable the exiting possibility to study ultracold atoms in extended microgravity, lifting these constraints.
Here, we present a design of a compact and robust setup to paint optical potentials using a 2D acousto optic deflector. We show various characterization measurements and simulations investigating the dynamics of the moving light beam and the atoms.
We acknowledge support by the German Space Agency DLR with funds provided by the Federal Ministry of Economics and Technology (BMWi) under the grant numbers 50 WP 1431 and 1700. Supported and funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Strategy EXC-2123 QuantumFrontiers 390837967.