Advanced Optical Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 22, 2025

Abstract As there is a diversification in indoor communication scenarios, metasurfaces with complex‐amplitude modulation show great potential for improving performances. However, still face challenges achieving efficient full‐space coverage, multi‐channel communication, and system integration. Here, frequency‐spatial multiplexed metasurface design strategy proposed communications. By adjusting the structural parameters orientation angles of meta‐atoms, amplitude phase across five channels are jointly tailored, enabling precise wave manipulation to enhance quality within coverage area. Additionally, designed utilized an generate different holographic images at specific frequencies distances, allowing point‐to‐point terminals receive signals perform functions. Meanwhile, ultrathin structure single‐layer substrate cladded by two patterned metal layers facilitates high‐density integration devices. Numerical simulations experimental results validate five‐channel imaging, demonstrating its wide‐area wireless data transmission applications, providing new directions future technologies.

Language: Английский