Dynamic Optical Lattices Through Conducting Polymer-Gated Confinement.

ABSTRACT: Organic metasurfaces based on conducting polymers are emerging as new opportunities for active nano-optic devices, but their tunable plasmonic resonances are limited to infrared wavelengths (≥960 nm) and mainly with low quality-factors (Q < 2). Here we propose the concept of a "conducting polymer gate" to endow organic metasurfaces with switchable high-Q nonlocal resonances within the visible/NIR-I regime (640-950 nm). Poly(3,4-ethylenedioxythiophene) (PEDOT) is integrated into organic dielectric nanocylinder lattices and serves as a gate that controls optical leakage from the nanocylinders to the substrate. The quasi-metallic PEDOT blocks such leakage channel and induces light confinement within the dielectric nanocylinders despite their low refractive index (n_die < 1.7). This

SUBMITTER: Lin D 

PROVIDER: S-EPMC12910422 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature