Terahertz refractive index sensor based on asymmetric split ring structure

Yuanze Huang; Yuanli Wang

doi:10.1117/12.3004958

20 October 2023 Terahertz refractive index sensor based on asymmetric split ring structure

Yuanze Huang, Yuanli Wang

Proceedings Volume 12916, Third International Conference on Signal Image Processing and Communication (ICSIPC 2023); 129161C (2023) https://doi.org/10.1117/12.3004958
Event: Third International Conference on Signal Image Processing and Communication (ICSIPC 2023), 2023, Kunming, China

Abstract

Recently, metarsurfaces working in terahertz wavelength region has attracted considerable attention from researchers, which could provide an effective way of advancing the performance of the terahertz bio-sensors. In this paper, we propose a metasurface array which consists of a square ring with four gaps at each corner and a wire inserting parallel to x axis. Simulation results show that one additional resonance is excited at 2.173 THz due to the introduced asymmetry. According to the calculation, the sensitivity of the additional resonance can reach 606 GHz/RIU. Meanwhile, the Q factor and FOM value can also reach 50.53 and 14.09 respectively. Due to the excellent performance, the proposed metasurface array can be effectively used for terahertz sensing application.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Yuanze Huang and Yuanli Wang "Terahertz refractive index sensor based on asymmetric split ring structure", Proc. SPIE 12916, Third International Conference on Signal Image Processing and Communication (ICSIPC 2023), 129161C (20 October 2023); https://doi.org/10.1117/12.3004958

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