Terahertz carpet cloak based on a ring resonator metasurface

This work was supported in part by the Spanish Government under Contract Consolider Engineering Metamaterials CSD2008-00066 and Contract TEC2011-28664-C02-01. B.O. is sponsored by the Spanish Ministerio de Economia y Competitividad under Grant No. FPI BES-2012-054909. M.B. is sponsored by the Spanish Government via RYC-2011-08221. N.M.E. and A.A. have been supported by the NSF CAREER Award No. ECCS-0953311 and the AFOSR Grant No. FA9550-13-1-0204.