1. EmpaSwiss Federal Laboratories for Materials Science and Technology Ueberlandstrasse 129 8600 Duebendorf Switzerland
2. Optics Balzers AG Neugruet 35 9496 Balzers Liechtenstein
3. Electronics LaboratorySwiss Federal Institute of Technology Zurich (ETH Zurich) Gloriastrasse 35 8092 Zurich Switzerland