Author Affiliations

Charalampos P. Mavidis,^1,2 Anna C. Tasolamprou,² Shakeeb B. Hasan,^3,6 Thomas Koschny,⁴ Eleftherios N. Economou,^2,5 Maria Kafesaki,^1,2 Costas M. Soukoulis,^2,4 and Willem L. Vos³

¹Department of Materials Science and Technology, University of Crete, Heraklion, Crete, Greece

²Institute of Electronic Structure and Laser, Foundation for Research and Technology Hellas, N. Plastira 100, 70013 Heraklion, Crete, Greece

³Complex Photonic Systems (COPS), MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands

⁴Ames Laboratory and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA

⁵Department of Physics, University of Crete, Heraklion, Greece

⁶Present address: ASML Netherlands B.V., 5504 DR Veldhoven, The Netherlands