Design and manufacturing of plasmonic resonant surfaces based on nano-insulating films and their application to infrared tunneling emission

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Plasmonic resonant surfaces that perfectly harvest light wave with a specific polarization and wavelength by the arrayed nanometric plasmonic resonators have been investigated. In particular, intuitive design procedures based on energy flow, and controlled manufacturing processes based on industrially matured deposition techniques of nanometric thin films have been considered. In addition, we have invented a novel optical source based on tunneling emission to generate mid-infrared radiation without using thermal emission. Tunneling current was observed in the fabricated plasmonic resonant surfaces, however, mid-infrared emission is not yet demonstrated.