Thermally tunable infrared metasurfaces
We report a computational and experimental study using tunable infrared (IR) metasurfaces to demonstrate amplitude modulation (59%) in reflectance mode. The tuning was achieved through the addition of an active material - germanium telluride (GeTe) - within the unit cell of the metasurface architect...
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Published in | 2017 11th International Congress on Engineered Materials Platforms for Novel Wave Phenomena (Metamaterials) pp. 313 - 315 |
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Main Authors | , , , , , |
Format | Conference Proceeding |
Language | English |
Published |
IEEE
01.08.2017
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Subjects | |
Online Access | Get full text |
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Summary: | We report a computational and experimental study using tunable infrared (IR) metasurfaces to demonstrate amplitude modulation (59%) in reflectance mode. The tuning was achieved through the addition of an active material - germanium telluride (GeTe) - within the unit cell of the metasurface architecture. An applied stimulus (temperature) is used to induce a dielectric change in the active material and subsequent variation in the absorption and reflection properties of the metasurface in the IR. Additionally, we explore the prospect of dynamic opto-thermal switching for the prospect of fast modulation. |
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DOI: | 10.1109/MetaMaterials.2017.8107795 |