1. Optical
Materials Engineering Laboratory, Department of Mechanical and Process
Engineering, ETH Zurich, 8092 Zurich, Switzerland
2. Zuse Institute Berlin, 14195 Berlin, Germany
3. JCMwave GmbH, 14050 Berlin, Germany
4. Photo-Electronic
Hybrids Research Center, Korea Institute of Science and Technology, Seoul 136-791, South Korea
5. Department
of Material Physics, University of the Basque Country UPV/EHU, Donostia-San Sebastian 20018, Spain
6. Donostia International Physics Center (DIPC), Donostia-San Sebastian 20018, Spain
7. Centro de Física de Materiales CFM − Materials Physics Center MPC, centro mixto CSIC − UPV/EHU, Donostia-San Sebastian 20018, Spain