THz Tripod Metasurfaces for Sensing Applications: From the Basic, to More Elaborated Designs

Jáuregui-López, I; Orazbayev, B; Pacheco-Peña, V; Beruete, M

doi:10.1109/Metamaterials52332.2021.9577115

THz Tripod Metasurfaces for Sensing Applications: From the Basic, to More Elaborated Designs

Lookup NU author(s): Dr Victor Pacheco Pena ORCiD

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Abstract

In this work, we propose, design, and evaluate three types of : three types of metasurfaces using tripod-shaped unit cells when working as thin-film sensing devices. The three meta-atoms of the proposed metasensors are a simple solid tripod, a hollow tripod, and a hollow tripod structure with arms. The best design showed a mean numerical sensitivity of 1.42 × 10−4 nm for extremely thin samples, meaning an improvement of 381% with respect to the initial designs. These results highlight the importance of using metastructures with complex geometries that