Two-dimensional metasurfaces with integrated capacitors and active-matrix driver routing
US11960155B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 5, 2023 |
| Grant date | Apr 16, 2024 |
| Priority date | — |
| Expiry date | Oct 5, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/15
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A metasurface may include a substrate layer and a two-dimensional array of metallic optical pillars arranged in rows and columns. A tunable dielectric material with a tunable refractive index is positioned between row-adjacent optical resonators. A two-dimensional active-matrix driver includes integrated driver routing layer(s), capacitor layer(s), and/or transistor layer(s). The driver routing layers enable row and column addressing of the two-dimensional array of metallic pillars via a row conductor for each row of metallic pillars and a column conductor for each column of metallic pillars. A transistor layer includes transistor devices connected to and configured to be selectively driven by the row and column conductors. The capacitor layer includes a plurality of storage capacitors. Each metallic pillar is connected in parallel to one of the storage capacitors in the capacitor layer and one of the transistor devices in the transistor layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.