Chinese Journal of Quantum Electronics, Volume. 40, Issue 3, 333(2023)

Terahertz planar toroidal dipole metamaterial sensor for detecting gutter oil

XU Jianwei1, OUYANG Shoujian1, DUAN Shouxin1, ZOU Liner1,2, DENG Xiaohua2, and SHEN Yun1,2、*
Author Affiliations
  • 1School of Physics and Materials Science, Nanchang University, Nanchang 330031, China
  • 2Institute of Space Science and Technology, Nanchang University, Nanchang 330031, China
  • show less

    A terahertz toroidal dipole metamaterial sensor based on mirror symmetric square ring structure with double split is designed and fabricated, and a transmission resonant valley with a Q value of 16.8 at 1.436 THz can be provided by the sensor. The surface current analysis of the structure at resonant frequency shows that the device can rapidly strengthen the toroidal dipole while suppressing the electric dipole and magnetic dipole. As a toroidal dipole metamaterial biosensor, the device has a sensitivity of up to 348.8 GHz /RIU when the analyte thickness is saturated, and can sensitively detect the small changes of the surface dielectric environment. The experimental results have demonstrated the perfect resolutions for discrimination between standard edible oil and gutter oil, indicating its great application prospects in food safety monitoring.

    Tools

    Get Citation

    Copy Citation Text

    Jianwei XU, Shoujian OUYANG, Shouxin DUAN, Liner ZOU, Xiaohua DENG, Yun SHEN. Terahertz planar toroidal dipole metamaterial sensor for detecting gutter oil[J]. Chinese Journal of Quantum Electronics, 2023, 40(3): 333

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Category:

    Received: Oct. 11, 2022

    Accepted: --

    Published Online: Jun. 30, 2023

    The Author Email: SHEN Yun (shenyun@ncu.edu.cn)

    DOI:10.3969/j.issn.1007-5461.2023.03.004

    Topics

    Please enter the answer below before you can view the full text.
    6-1=
    Submit