Control circuitry for 2D optical metasurfaces
US10468447B2 · kind B2 · utility
16Cited by
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19Claims
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Key dates
| Filing date | Nov 28, 2017 |
| Grant date | Nov 5, 2019 |
| Priority date | — |
| Expiry date | Nov 28, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2237/334
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A 2D hologram system with a matrix addressing scheme is provided. The system may include a 2D array of sub-wavelength hologram elements integrated with a refractive index tunable core material on a wafer substrate. The system may also include a matrix addressing scheme coupled to the 2D array of sub-wavelength hologram elements and configured to independently control each of the sub-wavelength hologram elements by applying a voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.