1. Institute for Physical Chemistry and Abbe Center of Photonics, Friedrich-Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
2. Institute of Photonic Technology (IPHT) Jena e.V., Albert-Einstein-Straße 9, 07745 Jena, Germany
3. Department of Chemistry and Pharmacy, Friedrich-Alexander University Erlangen-Nürnberg, Egerlandstraße 1, 91058 Erlangen, Germany