1. Erlangen Graduate School of Advanced Optical Technologies (SAOT), Friedrich-Alexander-University of Erlangen-Nuremberg, Paul-Gordan-Strasse 6, Erlangen 91054, Germany
2. Department of Computer Science 10 (LSS), Friedrich-Alexander-University of Erlangen-Nuremberg, Cauerstrasse 11, Erlangen 91058, Germany
3. Department of Material Science 6 (iMEET), Friedrich-Alexander-University of Erlangen-Nuremberg, Martensstrasse 7, Erlangen 91058, Germany