München 2004 – wissenschaftliches Programm

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Q: Quantenoptik und Photonik

Q 38: Poster Fallen und Kühlung

Q 38.7: Poster

Donnerstag, 25. März 2004, 14:00–16:00, Schellingstr. 3

Analysis of the motion of a single atom in a cavity dipole trap. — •I. Schuster, P. Maunz, T. Puppe, N. Syassen, P.W.H. Pinkse, and G. Rempe — Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Str. 1, 85748 Garching, Germany

In the regime of strong coupling, the motion of a single atom inside a high-finesse cavity can directly be observed since the position of the atom has a large influence on the light intensity within the cavity [1]. In our experiment, the atom is captured in an additional far-detuned standing-wave dipole trap [2]. The radial oscillation of the atom in the trap is clearly visible in the time-resolved transmission signal of the near-resonant cavity-QED field. The axial oscillation frequency is two orders of magnitude larger but can be resolved in the autocorrelation function of the transmitted light by virtue of the high detection bandwidth. The interdependence between axial and radial oscillation is examined. The motion of the atom inside the dipole trap is studied for different trap parameters.

[1] P.W.H. Pinkse, T. Fischer, P. Maunz, and G. Rempe, Nature 404, 365 (2000). C.J. Hood, T.W. Lynn, A.C. Doherty, A.S. Parkins, and H.J. Kimble. Science 287, 1447 (2000).

[2] J. Ye, D.W. Vernooy, and H.J. Kimble, Phys. Rev. Lett. 83, 4987 (1999).