Advanced Science, Год журнала: 2024, Номер unknown

Опубликована: Окт. 30, 2024

Abstract Terahertz (THz) electric inductive‐capacitive (ELC) resonant metamaterials (MMs) are well established tools that can be used to detect the presence of dielectric material (e.g., nanoparticles, bioparticles, etc.) spread on their surfaces within gap capacitive plates a nanoantenna array. In THz spectroscopy, amount red shift in resonance frequency (Δ F ) plays an important role detection nanoparticles and concentration. We introduce new LC MM architecture ELC category maximizes sensitivity. The newly proposed has octahedral structure with uniform gaps at each forty‐five‐degree interval, making super‐symmetric polarization independent. inductor core is condensed into central solid circle connecting all eight lobes octahedron, thereby completing circuit. This resonator very large active areas (capacitor‐gaps), hotspots periphery unit cell. repeated clustered fashion, so peripheral also utilized sensing. results enhancing quality factor resonance, as increasing Δ . research comprises combination rigorous system‐level simulations along impedance spectroscopy laboratory experiments. achieved highly sensitive sensor sensitivity reaching 1600 GHz/RIU. fully CMOS compatible promising potential applications high‐sensitivity bio‐sensing, characterization ultra‐low‐concentration dielectrics detection, sensing differential changes composition substances deposited metasurface.

Язык: Английский