Extreme Wave-Based Metastructures Nader Engheta

📋 论文概要

该论文介绍了利用超材料和超表面（二维超材料）实现对电磁波和光波的极端控制，通过精心设计的散射元素形成界面结构，从而构造基于波的功能设备和组件。论文旨在为集成电路领域提供新的波基信号处理和控制范式。

💡 主要创新点

• 提出利用超材料和超表面实现极端波控制，突破了传统材料对电磁波的限制。
• 通过设计二维界面结构（超表面）实现紧凑、高效的波操纵，适用于片上集成。
• 为波基功能器件（如滤波、波束赋形、信号处理）提供了新的物理平台，可拓展集成电路设计思路。

🏷 关键词

📄 原文摘要

opportunities for unprecedented control of electromagnetic and optical signals with numerous applications. In order to sculpt and manipulate waves to achieve exciting functionalities, we need materials. Judiciously engineered metamaterials and their two dimensional versions, i.e., metasurfaces, which are interfacial structures formed by properly designed and arranged scattering elements, are useful platforms to achieve extreme control of waves leading to wave-based functional devices and components. Numerous paradigms and platforms have been introduced and explored in this context in recent years. These include optical analog computing machines, metamaterial photonic processors, near-zero-index photonics, four-dimensional metamaterials, and optical lumped nanocircuits, just to name a few. In the following, a subset of such extreme metastructures is briefly reviewed. Metamaterials that function as analog computing machines

👥 作者与机构

University of Pennsylvania, Philadelphia, PA, In recent years, the field of metamaterials and metasurfaces has provided exciting