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A: Fachverband Atomphysik

A 16: Ultra-cold atoms, ions, and BEC (joint session A/Q)

A 16.11: Poster

Mittwoch, 22. September 2021, 16:30–18:30, P

A high-resolution Ion Microscope to Probe Quantum Gases — •Moritz Berngruber, Nicolas Zuber, Viraatt Anasuri, Yiquan Zou, Florian Meinert, Robert Löw, and Tilman Pfau — Universität Stuttgart, Germany

On our poster, we present a high-resolution ion microscope, which is designed as a versatile tool to study cold quantum gases, ground-state ensembles, Rydberg excitations, and ionic impurities. The ion microscope consists of three electrostatic lenses that allow to image charged particles on a delay-line detector.
The microscope provides a highly tunable magnification, ranging from 200 to over 1500, a spatial resolution better than 200 nm and a depth of field of more than 70 µm. These properties enable the study of bulk quantum gases and phenomena ranging from microscopic few body processes to extended many-body systems. By additionally evaluating the time-of-flight to the detector, it is possible to obtain 3D-images of the cold atomic cloud.
Excellent electric field compensation allows us to study highly excited Rydberg systems and cold ion-atom hybrid systems. We will present recent results in the field of ion-atom hybrid systems, where the interaction between ions and Rydberg atoms results in a novel long-range atom-ion Rydberg molecule.