| 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. |
| Filed: 12/17/2012 |
| Application Number: 13/716324 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
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