ITO-Based Electrically Tunable Metasurface for Active Control of Light Transmission.

ABSTRACT: In recent years, the rapid development of dynamically tunable metasurfaces has provided a new avenue for flexible control of optical properties. This paper introduces a transmission-type electrically tunable metasurface, employing a series of subwavelength-scale silicon (Si) nanoring structures with an intermediate layer of Al₂O₃-ITO-Al₂O₃. This design allows the metasurface to induce strong Mie resonance when transverse electric (TE) waves are normally incident. When a bias voltage is applied, the interaction between light and matter is enhanced due to the formation of an electron accumulation layer at the ITO-Al₂O₃ interface, thereby altering the resonance characteristics of the metasurface. This design not only avoids the

SUBMITTER: Ma R 

PROVIDER: S-EPMC11479147 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature