Extraordinary transmission in subwavelength hole arrays at 220 GHz

Here, we present for the first time experimental results of the phenomenon of extraordinary transmission through double periodic arrays of subwavelength holes at 220 GHz. Prototypes have been designed and fabricated by deposition of a thin Aluminum layer over a polypropylene wafer. These simulation results show a resonant total transmission at wavelengths close to the long period of the array. The transmission response measurements will be performed with a Millimeter Wave Quasioptical Vector Network Analyzer in the range between 40 GHz and 260 GHz. These results can give rise to interesting applications in the emerging Metamaterials field.