title: Full-color hologram using spatial multiplexing of dielectric metasurface.
abstract: In this Letter, we demonstrate theoretically a full-color hologram using spatial multiplexing of dielectric metasurface for three primary colors, capable of reconstructing arbitrary RGB images. The discrete phase maps for the red, green, and blue components of the target image are extracted through a classical Gerchberg-Saxton algorithm and reside in the corresponding subcells of each pixel. Silicon nanobars supporting narrow spectral response at the wavelengths of the three primary colors are employed as the basic meta-atoms to imprint the Pancharatnam-Berry phase while maintaining minimum crosstalk between different colors. The reconstructed holographic images agree well with the target images making it promising for colorful display.
authors.forename: Wenyu
authors.initials: W
authors.lastname: Zhao
authors.forename: Bingyi
authors.initials: B
authors.lastname: Liu
authors.forename: Huan
authors.initials: H
authors.lastname: Jiang
authors.forename: Jie
authors.initials: J
authors.lastname: Song
authors.forename: Yanbo
authors.initials: Y
authors.lastname: Pei
authors.forename: Yongyuan
authors.initials: Y
authors.lastname: Jiang