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

IF 8 2区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY
Xiuyu Wang, Xiaoman Wang, Qun Ren, Jianwei You, Kaiwen Zou, Boxiang Yang, Zhihao Lan, Liu He, Wei E. I. Sha, Jianquan Yao
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引用次数: 0

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.

Abstract Image

利用鲁棒高阶 BIC 实现可编程元表面的安全机器人大脑
太赫兹波可广泛用于复杂室内环境中的短程通信和非破坏性物体探测应用。由于超表面可以在多个维度上对太赫兹波进行调制,因此被广泛应用于太赫兹传感和通信设备中。超材料机器人大脑可以利用超表面强大的直接调制能力来实现传感和通信功能。基于动态异构冗余(DHR)架构实现的超表面器件可以提高太赫兹波无线通信的保密性和安全性。普通金属超材料的本征欧姆损耗和品质因数通常较低,而为了实现更强的太赫兹物质相互作用,人们提出了连续体中束缚态(BIC)的概念。其中,高阶 BIC 因其对结构缺陷的强大鲁棒性而备受关注。因此,我们提出了一种具有高阶 BIC 的铝-石墨烯混合元表面。我们研究了高阶 BIC 的激发原理,并创造性地提出了利用磁性 EIT 效应实现高鲁棒性的方法。我们还利用高阶 BIC 的鲁棒性设计了基于 DHR 架构的安全硬件。所设计的安全硬件可满足智能机器人大脑对内部太赫兹波保密无线通信的需求。
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来源期刊
Advanced Optical Materials
Advanced Optical Materials MATERIALS SCIENCE, MULTIDISCIPLINARY-OPTICS
CiteScore
13.70
自引率
6.70%
发文量
883
审稿时长
1.5 months
期刊介绍: Advanced Optical Materials, part of the esteemed Advanced portfolio, is a unique materials science journal concentrating on all facets of light-matter interactions. For over a decade, it has been the preferred optical materials journal for significant discoveries in photonics, plasmonics, metamaterials, and more. The Advanced portfolio from Wiley is a collection of globally respected, high-impact journals that disseminate the best science from established and emerging researchers, aiding them in fulfilling their mission and amplifying the reach of their scientific discoveries.
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