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US 10,754,295 B2Granted
Ultra-thin color phase hologram with metasurfaces
AssigneePurdue Research Foundation
InventorsAmr Shaltout, Sajid Choudhury, Alexander V. Kildishev, Alexandra Boltasseva, Vladimir M. Shalaev
Life of this patent
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Abstract
A device for producing a subwavelength hologram. The device comprises a metasurface layer attached to a substrate. The metasurface layer includes an array of plasmonic antennas that simultaneously encode both wavelength and phase information of light directed through the array to produce a hologram. The wavelength is determined by the size of the antennas, and the phase is determined by the orientation of the antennas.
Claims19
A method of making a device comprising:
- forming a metasurface layer over a transparent substrate, wherein the metasurface layer comprises an array of plasmonic antennas, wherein each plasmonic antenna of the arrays of plasmonic antennas comprises openings, wherein the each plasmonic antenna of the array of plasmonic antennas is configured to simultaneously encode both wavelength and phase information of light directed through the array.
A method of making a device comprising:
- forming a metasurface layer over a transparent substrate, wherein the metasurface layer comprises an array of plasmonic antennas, wherein each plasmonic antenna of the arrays of plasmonic antennas comprises an opening, wherein the opening comprises a rectangular opening, wherein the each plasmonic antenna of the array of plasmonic antennas is configured to simultaneously encode both wavelength and phase information of light directed through the array.
A method of making a device comprising:
- forming a metasurface layer over a transparent substrate, wherein the metasurface layer comprises an array of plasmonic antennas, wherein each plasmonic antenna of the arrays of plasmonic antennas comprises an opening, wherein the opening comprises an elliptic opening, wherein the each plasmonic antenna of the array of plasmonic antennas is configured to simultaneously encode both wavelength and phase information of light directed through the array.
Dependencies are inferred from the claim text.