1. Warsaw University of Technology, Institute of Micromechanics and Photonics, 8 Sw. A. Boboli Street, 02-525 Warsaw, Poland
2. LovaLite, 7 rue Xavier Marmier, 25000 Besançon, France
3. Vrije Universiteit Brussel, Department of Applied Physics and Photonics, Brussels Photonics Team, Pleinlaan 2, 1050 Brussels, Belgium