Patent ID: 8797382

Claim:
A dynamically reconfigurable hologram comprising: a phase-control layer having a plurality of phase-modulation elements, wherein each phase-modulation element is configured to have a selectable effective refractive index and selectively transmit wavelengths associated with one of three primary color wavelength bands of the visible spectrum, wherein the selectable effective refractive index comprises a negative effective refractive index; and an intensity-control layer having a plurality of intensity-control elements, wherein each of the plurality of intensity-control elements is configured to have a selectable transparency to control an intensity of light transmitted through a respective intensity-control element of the plurality of intensity-control elements, wherein one or more color three-dimensional holographic images are produced by electronically addressing the phase-modulation elements and intensity-control elements to produce wavefronts and control the intensity of light transmitted through the hologram; wherein the phase-control layer further comprises: a first layer of approximately parallel nanowires, each nanowire having substantially regularly spaced fingers; a second layer of approximately parallel nanowires that overlay the nanowires in the first layer, each nanowire having substantially regularly spaced fingers, wherein the nanowires in the first layer are approximately perpendicular in orientation to the nanowires in the second layer; and resonant elements at nanowire intersections, wherein each resonant element includes two fingers of a nanowire in the first layer and two fingers of a nanowire in the second layer and one or more adjacent resonant elements form a phase-modulation element.