Author Affiliations

T. Schreiber,^a C.K. Nielsen,^a,1 B. Ortac,^a J. Limpert,^a,* and A. Tünnermann^b,c

^aFriedrich Schiller University, Institute of Applied Physics, Albert-Einstein-Str. 15, D-07745 Jena, Germany

^bFraunhofer Institute for Applied Optics and Precision Engineering, Albert-Einstein-Str. 7, 07745 Jena, Germany

^cFriedrich Schiller University, Institute of Applied Physics, Albert-Einstein-Str. 15, D-07745 Jena, Germany

¹also with Department of Physics, University of Aarhus, Denmark

^*Corresponding author: Jens.Limpert@uni-jena.de