Dumbbell Metamaterial with Absorbance in Terahertz Frequency Range

  • Shubham Kumar
  • Prutha P. Kulkarni



This paper presents the design and experimental characterization of a dumbbell-shaped metamaterial structure with absorbance in the terahertz frequency range. The proposed structure consists of a metallic dumbbell-shaped resonator placed on a substrate and covered with a thin layer of dielectric material. The structure exhibits a strong resonant behavior at a frequency of 0.9 THz due to the presence of the metallic resonator. The effect of different design parameters such as the size and shape of the resonator, the thickness of the dielectric layer, and the spacing between the resonators on the absorption properties of the metamaterial structure is investigated using full-wave simulations. The experimental results show that the proposed metamaterial structure exhibits a high absorbance of up to 80% at 0.9 THz, which makes it a promising candidate for various applications in terahertz technology, such as sensing, imaging, and spectroscopy.

Keywords: Metamaterial, absorbance, Terahertz, resonator, metasurface


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Kumar, S., & Kulkarni, P. P. (2023). Dumbbell Metamaterial with Absorbance in Terahertz Frequency Range. Asian Journal For Convergence In Technology (AJCT) ISSN -2350-1146, 9(1), 9-11. https://doi.org/10.33130/AJCT.2023v09i01.003