Chalcophosphate metasurfaces with multipolar resonances and electro-optic tuning.

ABSTRACT: We computationally analyze the electro-optic response of metasurfaces consisting of interconnected nanoantennas with multipolar resonances using a chalcophosphate, Sn₂P₂S₆, as the active material. Sn₂P₂S₆ has large electro-optic coefficients and relatively low Curie temperature (<70 °C), allowing for strong changes in the refractive index of the material under moderate electric fields if the temperature can be finely controlled in proximity of the Curie point. Through numerical simulations, we show that metasurfaces designed with this nanostructured material demonstrate a significant shift of multipolar resonances upon biasing, despite moderate refractive-index values of the chalcophosphate and reduced mode localization due

SUBMITTER: Babicheva VE 

PROVIDER: S-EPMC11503449 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature