Hannover 2013 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 43: Poster II
Q 43.8: Poster
Wednesday, March 20, 2013, 16:00–18:30, Empore Lichthof
Development of a narrowband laser system for spectroscopy of ultra cold mercury — •Anika Trautmann1, Holger John1, Sascha Tichelmann2, and Thomas Walther1 — 1Technische Universität Darmstadt, Institut für Angewandte Physik, Laser- und Quantenoptik, Schlossgartenstraße 7, 64289 Darmstadt — 2Technische Universität Darmstadt, Institut für Angewandte Physik, Atome - Photonen - Quanten, Schlossgartenstraße 7, 64289 Darmstadt
Ultra cold neutral mercury trapped in an optical lattice lock has potential for a new time standard. A narrowband laser system with high stability on the 1 S0 - 3 P0 clock transition is required. We are working towards the realization of such a system. It is based on an external-cavity diode laser at 1062.4 nm which employs a low budget 4 nm broad interference-filter with a max. transition of 40%. Its output power is increased by amplification in an fiber amplifier. Subsequently, the wavelength of the clock transition at 265.6 nm will be reached by non-linear frequency conversion. The current state of the project will be presented.