Quad-band terahertz metamaterial absorber enabled by an asymmetric I-type resonator formed from three metallic strips for sensing application
نویسندگان
چکیده
A quad-band near-perfect terahertz absorber employing an asymmetric metamaterial element is demonstrated.
منابع مشابه
A dual band terahertz metamaterial absorber
We present the design, fabrication and characterization of a dual band metamaterial absorber which experimentally shows two distinct absorption peaks of 0.85 at 1.4 THz and 0.94 at 3.0 THz. The dual band absorber consists of a dual band electric-field-coupled (ELC) resonator and a metallic ground plane, separated by an 8μm dielectric spacer. Fine tuning of the two absorption resonances is achie...
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Metamaterial absorbers have attracted considerable attention for applications in the terahertz range. In this Letter, we report the design, fabrication, and characterization of a terahertz dual band metamaterial absorber that shows two distinct absorption peaks with high absorption. By manipulating the periodic patterned structures as well as the dielectric layer thickness of the metal-dielectr...
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A simple design of an ultrathin six-band polarization-insensitive terahertz perfect metamaterial absorber (PMMA), composed of a metal cross-cave patch resonator (CCPR) placed over a ground plane, was proposed and investigated numerically. The numerical simulation results demonstrate that the average absorption peaks are up to 95% at six resonance frequencies. Owing to the ultra-narrow band reso...
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ژورنال
عنوان ژورنال: Sensors & diagnostics
سال: 2022
ISSN: ['2635-0998']
DOI: https://doi.org/10.1039/d1sd00005e