Mid-infrared tunable metamaterials
US9018642B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2012 |
| Grant date | Apr 28, 2015 |
| Priority date | — |
| Expiry date | Mar 29, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/11
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A mid-infrared tunable metamaterial comprises an array of resonators on a semiconductor substrate having a large dependence of dielectric function on carrier concentration and a semiconductor plasma resonance that lies below the operating range, such as indium antimonide. Voltage biasing of the substrate generates a resonance shift in the metamaterial response that is tunable over a broad operating range. The mid-infrared tunable metamaterials have the potential to become the building blocks of chip based active optical devices in mid-infrared ranges, which can be used for many applications, such as thermal imaging, remote sensing, and environmental monitoring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.