Hannover 2010 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 54: Laser Applications: Optical Measurement Technology I

Q 54.7: Vortrag

Donnerstag, 11. März 2010, 15:30–15:45, F 342

New Spectroscopic Techniques for Rydberg Atoms — •Thomas Becker, Pierre Thoumany, Linas Urbonas, and Theodor Hänsch — Max Planck Institute for Quantum Optics, Garching

In this talk, recent experiments about purely optical, Doppler-free spectroscopy of Rydberg atoms in gas cells will be reviewed. All experiments are based on a realization of electron-shelving techniques and allow a non-destructive detection of Rydberg transitions. Two different laser schemes, one single-step Rydberg excitation in he UV and a three-step Rydberg excitation with IR diode lasers will be presented. Possibilities of observing two-photon transitions with a similar setup will be discussed as well. The unexpected frequency stability of the Rydberg lines opens the possibility for laser frequency metrology and coherent control applications. Finally, ideas about extending the presented technology with frequency combs as light sources will be discussed.