Terahertz near-field microscopy of metallic circular split ring resonators with graphene in the gap.

ABSTRACT: Optical resonators are fundamental building blocks of photonic systems, enabling meta-surfaces, sensors, and transmission filters to be developed for a range of applications. Sub-wavelength size (< λ/10) resonators, including planar split-ring resonators, are at the forefront of research owing to their potential for light manipulation, sensing applications and for exploring fundamental light-matter coupling phenomena. Near-field microscopy has emerged as a valuable tool for mode imaging in sub-wavelength size terahertz (THz) frequency resonators, essential for emerging THz devices (e.g. negative index materials, magnetic mirrors, filters) and enhanced light-matter interaction phenomena. Here, we probe coherently the localized field supported by circular split ring resonators with single la

SUBMITTER: Schiattarella C 

PROVIDER: S-EPMC11247082 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature