Berlin 2005 – wissenschaftliches Programm
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Q: Quantenoptik und Photonik
Q 36: Quanteneffekte II
Q 36.5: Vortrag
Dienstag, 8. März 2005, 11:45–12:00, HU 1072
Resonance Fluorescence of cold trapped atoms — •Wolfgang Merkel1, Marc Bienert2, and Giovanna Morigi3 — 1Abteilung für Quantenphysik, Universität Ulm, D-89069 Ulm — 2Centro de Ciencas Físicas UNAM, 62251 Cuernavaca, Mexico — 3Departament de Fisica, Universitat Autonoma de Barcelona, 08193 Bellaterra, Spain
We investigate theoretically the spectrum of resonance fluorescence of a cold trapped atom in the final stage of laser cooling. We focus on the features due to the mechanical effects of light in the case where the size of the atomic wavepacket is much smaller than the laser wavelength (Lamb-Dicke limit). In particular, we discuss how these spectral features depend on the underlying model describing the internal atomic structure. Our aim is to identify the origin of the spectral features characterizing the motional sidebands. A consideration based on classical arguments is set in contrast to the full quantum mechanical result. To clarify the differences of both considerations we provide a semiclassical analysis of the problem.