Broadband Achromatic Programmable Electromagnetic Camouflage via Fluidic-Accessible Metasurface.

ABSTRACT: Broadband and reconfigurable illusion camouflage remains a major challenge in electromagnetic wave manipulation, as it imposes concurrent demands for precise dispersion control together with reliable real-time switching across wide frequency ranges. Existing metasurface cloaks typically suffer from narrow bandwidths and limited adaptability, rendering them unsuitable for dynamic radar detection scenarios. Herein, we propose and experimentally demonstrate a Fluidic-Accessible Metasurface (FAM) that overcomes these limitations by enabling programmable electromagnetic illusions through focal-spot encoding. The supercells are designed with strong dispersion control and achromatic focusing capabilities, thereby generating stable scattering hotspots from the radar perspective. Through the assemb

SUBMITTER: Liu S 

PROVIDER: S-EPMC12915077 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature