研究目的
Investigating the high absorbance performance of symmetrical split ring resonator (SRR) terahertz metamaterial based on paper as spacer.
研究成果
The study successfully demonstrated high absorbance performance of symmetrical SRR terahertz metamaterial based on paper, achieving up to 99% absorbance at 0.92 THz through destructive interference phenomenon. The numerical and analytical results showed good agreement, validating the design's effectiveness for terahertz applications.
研究不足
The study primarily focuses on numerical and analytical results, with potential limitations in practical fabrication and application due to the complexity of achieving high-resolution metallic structures on paper. The error margin between numerical and analytical results, though small, indicates areas for optimization in calculation methods.
1：Experimental Design and Method Selection:
The study involved designing symmetrical split ring resonator (SRR) structures on paper and depositing a metallic plane on the back side to create a terahertz metamaterial absorber. Numerical and analytical methods were used to analyze the absorbance performance.
2：Sample Selection and Data Sources:
Paper was selected as the dielectric material due to its low roughness and environmental friendliness. Gold was used for the metallic bars due to its good conductivity and resistance to oxidation.
3：List of Experimental Equipment and Materials:
Gold for metallic bars, glossy paper for dielectric, and specific dimensions for the SRR structure (width: 20 μm, length: 100 μm, thickness: 100 nm, gap size: 5 μm, lattice constant: 110 μm).
4：Experimental Procedures and Operational Workflow:
The SRR structure was designed on the upper side of the paper, and a metallic plane was deposited on the back side. The terahertz wave interaction with the structure was analyzed to determine absorbance performance.
5：Data Analysis Methods:
The absorbance and reflectance performance were analyzed numerically and analytically, focusing on the destructive interference phenomenon caused by multiple reflections of the terahertz wave.
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