1. Nanophotonics - Physics of Devices, Debye Institute for Nanomaterials Science; Utrecht University; High Tech Campus, Building 21 Eindhoven 5656 AE The Netherlands
2. Center for Nanophotonics; FOM Institute AMOLF; Science Park 104 Amsterdam 1098 XG The Netherlands
3. Department of Applied Physics, Plasma and Materials Processing; Eindhoven University of Technology (TU/e); Eindhoven 5600 MB The Netherlands
4. Energy Research Center of the Netherlands (ECN); Solar Energy, High Tech Campus 21; 5656 AE Eindhoven The Netherlands