Hamburg 2009 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 30: Poster II

Q 30.56: Poster

Tuesday, March 3, 2009, 16:30–19:00, VMP 9 Poster

Transmission properties of microresonators coupling to multi-level atoms — •Sandra I. Schmid and Jörg Evers — MPI für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg

Microresonators offer the possibility to achieve strong coupling between atoms and light fields. For example, in [1,2] strong coupling between a toroidal microresonator and a two-level atom was achieved. The light is fed into the resonator via a tapered glass fiber. Internal reflections form pairs of counterpropagating whispering gallery modes inside the resonator. Atoms can be coupled to these circulating fields via the evanescent field component leaking out of the resonator. Such couplings have an influence on the photon flux that leaves the resonator.

Here, we investigate a system where a three-level atom couples to a microresonator. Each of the atomic transitions couples to one pair of modes within the resonator. In this setup, the position dependence and the polarizations of the light fields have to be considered. We are interested in the impact of the atom on the output photon flux. Our observables are photon intensity and spectrum as well as correlations among different photon modes.

[1] B. Dayan et al., Science 319, 1062 (2008)
[2] T. Aoki et al., Nature 443, 671 (2006)