21 February 2013 Theoretical and experimental investigation of hybrid broadband terahertz metamaterial absorber
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Abstract
Among electromagnetic spectrum, terahertz region has been utilized less due to the lack of appropriate devices that works well in these frequencies But recently growing interest has been focused to design devices with functionality in terahertz region because of potential terahertz applications. We present a novel structure that broadens bandwidth of terahertz metamaterial absorber. Our structure takes a benefit of multiband absorber by making the bands close enough to each other but in a multilayer pattern. The absorber has composed of two concentric copper rings in two different layers followed by polyimide and a metal back layer. Simulation shows 100 GHz bandwidth which is double of that of a single layer single ring absorber.
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Mohammad Parvinnezhad Hokmabadi, David S. Wilbert, Patrick Kung, Seongsin M. Kim, "Theoretical and experimental investigation of hybrid broadband terahertz metamaterial absorber ", Proc. SPIE 8632, Photonic and Phononic Properties of Engineered Nanostructures III, 86321X (21 February 2013); doi: 10.1117/12.2005753; https://doi.org/10.1117/12.2005753
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