Frequency Selective Metasurface Fabricated with Two-Photon Polymerization

Metasurfaces, in the form of perfect reflectors, have received attention for their sensing and filtering capabilities. Plas-monic metasurfaces allow for frequency filtering by controlling the input polarization. We demonstrate a frequency filtering metasurface composed of an array of subwavelength metallic pluses fabricated using two-photon polymerization.