Abstract
Metamaterial absorbers with single resonance mode and narrow bandwidth are often used in sensing. A metamaterial absorber containing dielectric layers of the same thickness (Polymeric Methyl Methacrylate (PMMA) and strontium titanate (STO)) are proposed and confirmed. At room temperature (300 K), an individual absorption peak is excited, and the single resonance mode and narrow bandwidth characteristic are obtained. The amplitude and resonance frequency of the metamaterial samples can be controlled by changing the thickness of PMMA or STO. The metamaterial samples are placed in an environment with a gradual change in temperature. The results show that the absorptive properties of the metamaterial sample show remarkable repeatability in the process of temperature increase and decrease. Therefore, based on the properties of single resonance mode, narrow bandwidth, and reversibility, the metamaterial samples have the potential to be used in smart packaging sensing.
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