Erlangen 2022 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 29: Ultra-cold atoms, ions and BEC (joint session A/Q)
A 29.6: Poster
Donnerstag, 17. März 2022, 16:30–18:30, P
Compact device for painting blue-detuned time-averaged optical potentials for space application — •Kai Frye1,2, Marius Glaeser1, Christian Schubert1,2, Waldemar Herr1,2, Ernst Rasel1, and 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
The Bose-Einstein and Cold Atom Laboratory (BECCAL) will be a multi-user and -purpose facility onboard the International Space Station. It will provide ultacold ensembles of Rb and K atoms for experiments on fundamental research and sensor applications. For this, BECCAL will support the confinement of atoms in optical flat-bottom traps of arbitrary shapes.
Here, we present a design of a compact and robust setup for creation of blue-detuned time-averaged optical potentials. We utilize a dual-axis acousto-optical deflector and characterize the setup in terms of efficient use of light power, light extinction in the center of the optical trap and smoothness of the potential.
BECCAL is supported 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. Funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany*s Excellence Strategy * EXC-2123 QuantumFrontiers * 390837967.