1. Institute for Physical Chemistry University of Hamburg Martin‐Luther‐King Platz 6 20146 Hamburg Germany
2. Institute for Anorganic and Applied Chemistry University of Hamburg Martin‐Luther‐King Platz 6 20146 Hamburg Germany
3. The Hamburg Centre for Ultrafast Imaging 22761 Hamburg Germany
4. Department of Chemistry Swansea University Swansea SA2 8PP UK
5. Institute of Physics University of Rostock Albert‐Einstein‐Straße 23 18059 Rostock Germany
6. Fraunhofer Center for Applied Nanotechnology CAN Grindelallee 117 20146 Hamburg Germany