Frankfurt 2006 – scientific programme

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Q: Quantenoptik und Photonik

Q 53: Fallen und Kühlung II

Q 53.3: Talk

Wednesday, March 15, 2006, 15:00–15:15, HII

Single trapped Ca⁺ ions for frequency metrology — •G. Hagel, M. Knoop, C. Champenois, M. Houssin, M. Vedel, and F. Vedel — Université de Provence, Marseille, France

Due to its natural linewidth below 200mHz, the electric quadrupole transition at 729 nm of a single trapped calcium ion is an excellent candidate for the realization of an frequency standard in the optical domain. The wavelengths for lasercooling (397 and 866nm) and excitation of the clock transition can all be generated from solid-state or even diode lasers. Single ions are trapped in a miniature ring trap. Different scenarios have been employed to cool, immobilize and probe the ion, recent progress of the experiment will be presented.