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In this paper, we examine graphene as a material for reconfigurable terahertz (THz) optoelectronics. The ability of electrically tuning its optical properties in a wide range of THz frequencies, together with its 2-D nature and facile integration, leads to unique opportunities for inventing novel THz devices as well as for extending the performance of existing THz technologies. We first review progress...
We demonstrate metamaterial-based electro-absorption THz modulators employing frequency-selective-surfaces (FSS) and graphene. By placing the graphene layer at an optimal distance from the FSS, the sensitivity of THz transmittance can be greatly enhanced.
We propose and demonstrate a graphene-based device achieving extraordinary control of terahertz (THz) wave reflectance. The advantages of graphene based switchable THz devices include low cost, facile fabrication and excellent tunability, thus promising for THz system applications.
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