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A: Fachverband Atomphysik

A 28: Ultracold plasmas and Rydberg systems (with Q)

A 28.1: Poster

Mittwoch, 2. März 2016, 16:30–19:00, Empore Lichthof

Building up a two-species Rydberg experiment with a spatially resolving ion detector — •Thomas Schmid, Christian Veit, Nicolas Zuber, Robert Löw, and Tilman Pfau — 5th Physical Insitute, University of Suttgart, Stuttgart, Germany

We are building up an experiment for the production of an ultracold mixture of lithium and rubidium gases with the possibility of Rb Rydberg excitation. The machine, to that end, comprises a two-species Zeeman slower [1]. In the science chamber, a high numerical aperture optical lens is incorporated for focused Rydberg excitation. Besides, eight field plates arranged in a clover leaf configuration allow for ultra-stable electric field control and field-ionization of the Rydberg atoms. Single ions can be detected temporally and spatially resolved with a delay-line detector [2]. The time resolution is approximately 100 ps, the spatial resolution at the detector is around 100 µm. The detector can handle single particle rates up to several MHz. In order to get a spatial resolution in the micrometer regime at the position of the ultracold cloud in the centre of the science chamber an ion microscope with a magnification above 100 is planned. It consists of three electrostatic triple-cylinder-lenses and has a total length of about 1.5 m.

[1] G. E. Marti, D. M. Stamper-Kurn et al.; Phys. Rev. A 81, 043424 (2010).

[2] O. Jagutzki, H. Schmidt-Böcking et al.; Nucl. Instrum. Meth. A 477, 244 (2002).