1. Leibniz-Institut für Polymerforschung Dresden e.V., Institute of Physical Chemistry and Polymer Physics, D-01069 Dresden, Germany
2. Center for Molecular and Cellular Bioengineering, Biotechnology Center, Technische Universität Dresden, D-01307 Dresden, Germany
3. Max Planck Institute for the Science of Light, Staudtstraße 2, D-91058 Erlangen, Germany