1. Leibniz Institute of Photonic Technology, Albert-Einstein Straße 9, 07745 Jena, Germany
2. Institute
of Physical Chemistry and Abbe Center of Photonics, Friedrich-Schiller-University Jena, 07745 Jena, Germany
3. Biomolecular
Photonics, Department of Physics, University of Bielefeld, Universitätsstraße
25, 33615 Bielefeld, Germany
4. Department
of Internal Medicine and NSF Center for Biophotonics, University of California, Davis, Sacramento, California 95817, United States