1. Hybrid Nanostructures Lab, Institute of Chemistry, University of Potsdam, 14476 Potsdam, Germany
2. AG Theoretical Optics & Photonics, Institute of Physics, Humboldt University of Berlin, 12489 Berlin, Germany
3. Institute of Condensed Matter Theory and Optics, Friedrich-Schiller-University Jena, 07743 Jena, Germany
4. Max Born Institute, 12489 Berlin, Germany