Color-tunable plasmonic device with a partially modulated refractive index
US8045107B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 6, 2009 |
| Grant date | Oct 25, 2011 |
| Priority date | — |
| Expiry date | Apr 23, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/10
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A color-tunable plasmonic device is provided with a partially modulated refractive index. A first dielectric layer overlies a bottom electrode, and has a refractive index non-responsive to an electric field. A second dielectric layer overlies the first dielectric layer, having a refractive index responsive to an electric field. An electrically conductive top electrode overlies the second dielectric layer. A plasmonic layer including a plurality of discrete plasmonic particles is interposed between the top and bottom electrodes. In one aspect, the plasmonic layer is interposed between the first and second dielectric layers. In a second aspect, the plasmonic layer is interposed between the first dielectric layer and the bottom electrode. In a third aspect, a first plasmonic layer is interposed between the first dielectric layer and the bottom electrode, and a second plasmonic layer of discrete plasmonic particles is interposed between the first dielectric layer and the second dielectric layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.