Author Affiliations

Alexander Hassdenteufel,¹ Christian Schubert,² Birgit Hebler,² Helmut Schultheiss,^3,4 Jürgen Fassbender,^3,4 Manfred Albrecht,² and Rudolf Bratschitsch^5,*

¹Institute of Physics, Chemnitz University of Technology, D-09107 Chemnitz, Germany

²Institute of Physics, University of Augsburg, D-86135 Augsburg, Germany

³Helmholtz Zentrum Dresden Rossendorf, P.O. Box 510119, D-01314 Dresden, Germany

⁴Technische Universität Dresden, D-01062 Dresden, Germany

⁵Institute of Physics, University of Münster, D-48149 Münster, Germany

^*Corresponding author: Rudolf.Bratschitsch@uni-muenster.de