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Q: Fachverband Quantenoptik und Photonik

Q 50: Poster Ultrakalte Atome

Q 50.20: Poster

Thursday, March 13, 2008, 16:30–19:00, Poster C2

Apparatus for all optical probing of Rydberg states — •Harald Kübler, Tim Van Boxtel, Stefan Müller, Robert Löw, and Tilman Pfau — 5. Physikalisches Institut, Universität Stuttgart, Pfaffenwaldring 57, 70550 Stuttgart, Germany

We present an apparatus for all optical probing of Rydberg states in a dense atomic sample, trapped in a crossed CO₂ laser trap. We implemented electrical field control which allows us to apply complex field configurations on the atoms.

The apparatus offers an excellent numeric aperture for the detection of Rydberg states via light (in contrast to detection via field ionization). For this we will use electromagnetically induced transparency on the usual 5S-5P absorption line via coherent coupling to a highly excited Rydberg state[1]. We present first Rydberg EIT experiments.
[1] A. K. Mohapatra, T. R. Jackson, C. S. Adams: Coherent optical detection of highly excited Rydberg states using electromagnetically induced transparency