期刊
PHOTONIC AND PHONONIC PROPERTIES OF ENGINEERED NANOSTRUCTURES III
卷 8632, 期 -, 页码 -出版社
SPIE-INT SOC OPTICAL ENGINEERING
DOI: 10.1117/12.2005753
关键词
Metamaterial; Terahertz; Absorber
资金
- Div Of Electrical, Commun & Cyber Sys
- Directorate For Engineering [0824452] Funding Source: National Science Foundation
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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