23.06.2015 - Dr. Sebastian Slama - Cooperative coupling of ultracold atoms and surface plasmons
University of Tübingen
| When |
Jun 23, 2015
from 04:00 PM to 05:00 PM |
|---|---|
| Where | HS II, Physik Hochhaus, Hermann-Herder-Str. 3 |
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High cooperativity between optical emitters and light modes is an important condition for many applications ranging from the generation of single photon sources to the reliable read-out of quantum information. We have recently demonstrated that high cooperativity can be reached by positioning ultracold atoms close to metallic surfaces and coupling the atomic emission to surface plasmons. A maximum Purcell enhancement of ηP=4.9 is reached at a distance of z=250 nm from the surface. Furthermore, the coupling leads to the observation of a Fano resonance in the spectrum.
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