Berlin 2005 – wissenschaftliches Programm

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Q: Quantenoptik und Photonik

Q 65: Fallen & Kühlung II

Q 65.2: Vortrag

Mittwoch, 9. März 2005, 11:15–11:30, HU 1070

Laser Cooling in a High-Finesse-Resonator — •Julian Klinner, Malik Lindholdt, Boris Nagorny, and Andreas Hemmerich — Universität Hamburg, Institut für Laserphysik, Luruper Chaussee 149, 22761 Hamburg

We report on our status of implementation of a laser cooling method, which makes use of a high finesse optical resonator. Our ring-resonator with a finesse of 180.000 is the integral part for both cooling and trapping of the atoms. The atoms are trapped in a far detuned standing wave dipole trap provided by two counter-propagating longitudinal modes. The cooling mode is the next lower frequency longitudinal resonator mode, which itself is blue detuned with respect to the transversely incoupled scattering laser mode. Cooling in axial direction should be visible since the scattering into the mode is of the same order as scattering into the free space (η_c=1) which gives rise to heating.