Realization of Secure Robotic Brain Via Programmable Metasurface with Robust High‐Order BIC

太赫兹辐射 稳健性(进化) 超材料 可重构性 计算机科学 无线 电子工程 材料科学 光电子学 电信 工程类 生物化学 基因 化学
作者
Xiuyu Wang,Xiaoman Wang,Qun Ren,Jian Wei You,Kaiwen Zou,Boxiang Yang,Zhihao Lan,Liu He,Wei E. I. Sha,Jianquan Yao
出处
期刊:Advanced Optical Materials [Wiley]
卷期号:12 (33) 被引量:2
标识
DOI:10.1002/adom.202401611
摘要

Abstract Terahertz waves can be widely used for short‐range communication in complex indoor environments and non‐destructive object detection applications. Metasurfaces are widely used in terahertz sensing and communication devices because they can modulate terahertz waves in multiple dimensions. Metamaterial robot brain can utilize metasurfaces' powerful direct modulation ability to achieve sensing and communication functions. The metasurface devices realized based on Dynamic Heterogeneous Redundancy (DHR) architecture can improve the confidentiality and security of terahertz wave wireless communication. While the intrinsic ohmic loss and quality factor of usual metallic metamaterials are usually low, the concept of bound states in the continuum (BIC) has been proposed for stronger terahertz‐matter interactions. Among them, high‐order BICs are of interest because of their strong robustness to structural defects. Therefore, an aluminium‐graphene hybrid metasurface with high‐order BIC is proposed. We have the principle of excitation of high‐order BICs is investigated and creatively proposed with high robustness realized using the magnetical EIT effect. The robustness of the high‐order BIC is also utilized to design security hardware based on DHR architecture. The designed secure hardware can satisfy the demand for an intelligent robotic brain to the internal terahertz wave confidential wireless communication.
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