1. Vrije Universiteit Brussel, Department of Applied Physics and Photonics, Brussels Photonics Team (B-PHOT), Pleinlaan 2, B-1050 Brussels, Belgium
2. Karlsruhe Institute of Technology (KIT), Institute for Microstructure Technology (IMT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
3. Commscope, R&D Optics Advanced Engineering, Diestsesteenweg 692, 3010 Kessel-Lo, Belgium