Spin-Switched Three-Dimensional Full-Color Scenes Based on a Dielectric Meta-hologram

The possibility to manipulate light fields with metasurfaces can facilitate more compact and efficient devices for encoding computer-generated holograms. However, most of the reconstructed holographic images for reported metasurfaces are either monochromatic or two-dimensional, limiting their applic...

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Published inACS photonics Vol. 6; no. 11; pp. 2910 - 2916
Main Authors Feng, Hang, Li, Qitong, Wan, Weiping, Song, Jung-Hwan, Gong, Qihuang, Brongersma, Mark L, Li, Yan
Format Journal Article
LanguageEnglish
Published American Chemical Society 20.11.2019
Subjects
3D
hologram
spin
metasurface
full-color
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Summary:The possibility to manipulate light fields with metasurfaces can facilitate more compact and efficient devices for encoding computer-generated holograms. However, most of the reconstructed holographic images for reported metasurfaces are either monochromatic or two-dimensional, limiting their applicability. Here, we design and fabricate a silicon metasurface, whose constituent meta-molecules are composed of three different kinds of meta-atoms capable of modulating red, green, and blue light independently. A modified Gerchberg–Saxton algorithm is utilized to retrieve the wavefront for the three-dimensional (3D) hologram. The reconstructed 3D full-color images can be switched by changing the helicity of the illuminating circularly polarized light. The spin-switched 3D full-color scenes greatly increase the information capacity of the device, which may find use in 3D dynamic displays, virtual reality, and data storage applications.
ISSN:2330-4022
2330-4022
DOI:10.1021/acsphotonics.9b01017