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1. A plasmonic metasurface color light filter comprising a planar array of red, green and blue unit cells defining a pixelated color filter, each unit cell including a plurality of light-transmissive nanoholes having a non-circular substantially elliptical cross-section, each unit cell being individually tunable with respect to a red, green or blue frequency and a polarization of light to filter by varying geometry of its respective nanoholes whereby each pixel of the filter corresponds to a unit cell and is individually tunable, each pixel simultaneously filtering a selected red, green or blue light wavelength and a polarization to form the pixelated color filter.
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