Fig. 1 Schematic diagram of the methodology and achromatic phase shift. (A) Schematic diagram of the off-axis illumination method for meta-hologram. (B) Experimental results of a flower RGB image. (C) Structure of a plasmonic nanoslit antenna. (D) Simulation results for the phase shift performance of the antennas with different ϕ (unit in radians) from 400- to 750-nm wavelength. Simulation settings: material of the metal is Au; the thickness of the Au film is 120 nm; period Λ = 200 nm; length l =140 nm; width w = 60 nm.
Fig. 2 Design principle and experimental configuration of meta-holography. (A) Design principle for the holographic imaging. (B) Experimental setup for the reconstruction process. QWP, quarter-wave plate; CCD, charge-coupled device. (C) Phase diagram of the meta-hologram calculated by the GS algorithm corresponding to the flower holographic image. Scale bar, 500 μm. Color bar, phase shift. (D) Scanning electron microscope image of the nanoslit antennas. Scale bar, 1 μm.
Fig. 4 Multi-image meta-holography. (A to C) Simulation results for the flower holography for the RGB image patterns. (D to F) Experimental results corresponding to the red, green, and blue image patterns, respectively. (G to I) RGB holographic images of map of China, which are reconstructed by the same hologram metasurface of the flower image with different light incident angles.
Fig. 5 Seven-color meta-holography. (A) Seven-color holographic image for the Sun Phoenix, a pattern discovered on an ancient artifact gold coil, made in the Chinese Shang dynasty 3000 years ago. (B to H) Patterns corresponding to purple, blue, cyan, red, orange, yellow, and green colors, respectively.
Supplementary Materials
Supplementary material for this article is available at http://advances.sciencemag.org/cgi/content/full/2/11/e1601102/DC1
section S1. Plasmonic nanoantenna array fabrication
section S2. Experimental setup of optical characterization
section S3. Simulation results for the seven-color hologram
section S4. Calculation of the color gamut
section S5. Efficiency of the meta-hologram
fig. S1. Definition of incident angles.
fig. S2. Target pictures, simulation, and experimental results of the seven-color Sun Phoenix holography.
fig. S3. Efficiency of the meta-hologram.
table S1. Incident angles for “flower.”
table S2. Incident angles for “map of China.”
table S3. Incident angles for “seven-color hologram.”
table S4. Incident angles for “3D imaging.”
table S5. List of the wavelength versus colors.
movie S1. The evolution of the images at different elevations above the hologram for “3D imaging.”
Additional Files
Supplementary Materials
This PDF file includes:
- section S1. Plasmonic nanoantenna array fabrication.
- section S2. Experimental setup of optical characterization.
- section S3. Simulation results for the seven-color hologram.
- section S4. Calculation of the color gamut.
- section S5. Efficiency of the meta-hologram.
- fig. S1. Definition of incident angles.
- fig. S2. Target pictures, simulation, and experimental results of the seven-color Sun Phoenix holography.
- fig. S3. Efficiency of the meta-hologram.
- table S1. Incident angles for “flower.”
- table S2. Incident angles for “map of China.”
- table S3. Incident angles for “seven-color hologram.”
- table S4. Incident angles for “3D imaging.”
- table S5. List of the wavelength versus colors.
Other Supplementary Material for this manuscript includes the following:
- movie S1 (.avi format). The evolution of the images at different elevations above the hologram for "3D imaging."
Files in this Data Supplement:
