Ultra-thin color phase hologram with metasurfaces
US10754295B2 · kind B2 · utility
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2References
19Claims
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Assignee
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Key dates
| Filing date | Apr 19, 2018 |
| Grant date | Aug 25, 2020 |
| Priority date | — |
| Expiry date | May 27, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2240/21
- WIPO fieldOptics
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.