1. Imec; Kapeldreef 75 3001 Leuven Belgium
2. University of Leuven; Departement Elektrotechniek - ESAT; Kasteelpark Arenberg 10 3001 Leuven Belgium
3. Now with: Ghent University, Department of Information Technology, Photonics Research Group; Sint-Pietersnieuwstraat 41 9000 Gent Belgium
4. Now with: University of Leuven, Centre for Surface Chemistry and Catalysis; Celestijnenlaan 200F, Leuven Chem &Tech post box 2461 3001 Leuven Belgium
5. University of Leuven; Department of Physics and Astronomy 3001 Leuven Belgium
6. Now with Qatar Environment and Energy Research Institute (QEERI); 5825 Doha Qatar
7. Obducat Technologies AB; Scheelevägen 2 223 63 Lund Sweden
8. UHasselt; Martelarenlaan 42 3500 Hasselt Belgium