1. Fraunhofer Institute for Ceramic Technologies and Systems IKTS Äußere Nürnberger Str. 62 91301 Forchheim Germany
2. Leuchs Emeritus Group Max Planck Institute for the Science of Light Staudtstr. 2 91058 Erlangen Germany
3. Institute for Nanotechnology and Correlative Microscopy eV INAM Äußere Nürnberger Str. 62 91301 Forchheim Germany
4. Department of Nephropathology Friedrich‐Alexander‐Universität Erlangen‐Nürnberg (FAU) Krankenhausstr. 8–10 91054 Erlangen Germany
5. Physics Department Freie Universität Berlin Arnimallee 14 14195 Berlin Germany