Scholarlink

<p>An all-dielectric metamaterial based on SrTiO3 (STO) ceramics and TiN ceramics is validated with two absorption peaks within 4–8 THz. The selectivity of the geometric parameters is obtained experimentally by these two absorption peaks. In addition, when the diameter of the ceramic array is equal to the lattice constant, the absorption peak is transformed into an absorption band. The thermal conductivity of the metamaterial samples under different thickness conditions is also revealed. The temperature sensitivity and sensing properties of the proposed ceramic-based metamaterials are validated in the 300–450&#xa0;K range. What is more, during the temperature rise, the absorption peak is again converted into an absorption band, revealing the corresponding active absorption window tunability. The new absorption peak is obtained during temperature modulation and has high sensing sensitivity. These results provide a basis for the application of ceramic-based metamaterials in new high-frequency functional devices.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Design and Optimization of the Tunability and Sensing Properties of a Composite Ceramic-Based Metamaterial Sensor

  • 期刊论文

  • 发表日期：

    2025年5月5日

查看全文
  • Hu Liu,
  • Zetian Dai,
  • Yi Zhang

摘要

An all-dielectric metamaterial based on SrTiO3 (STO) ceramics and TiN ceramics is validated with two absorption peaks within 4–8 THz. The selectivity of the geometric parameters is obtained experimentally by these two absorption peaks. In addition, when the diameter of the ceramic array is equal to the lattice constant, the absorption peak is transformed into an absorption band. The thermal conductivity of the metamaterial samples under different thickness conditions is also revealed. The temperature sensitivity and sensing properties of the proposed ceramic-based metamaterials are validated in the 300–450 K range. What is more, during the temperature rise, the absorption peak is again converted into an absorption band, revealing the corresponding active absorption window tunability. The new absorption peak is obtained during temperature modulation and has high sensing sensitivity. These results provide a basis for the application of ceramic-based metamaterials in new high-frequency functional devices.