太赫兹信息超材料与超表面  

Terahertz Information Metamaterials and Metasurfaces

作　　者：刘峻峰 刘硕 傅晓建 崔铁军[1] Liu Junfeng;Liu Shuo;Fu Xiaojian;Cui Tiejun(School of Information Science and Engineering, State Key Laboratory of Millimeter Wave Southeast University, Nanjing 210096, China)

机构地区：[1]东南大学信息科学与工程学院毫米波国家重点实验室,南京210096

出　　处：《雷达学报（中英文）》2018年第1期46-55,共10页Journal of Radars

基　　金：国家重大仪器专项(36-10-1315);国家自然科学基金(61302020;61631007;61571117;61501112;61501117;61522106;61722106;61701107)~~

摘　　要：该文对信息超材料,包括数字超材料、编码超材料、以及可编程超材料的研究进展及其在太赫兹领域的应用进行了综述,从原理分析、数值仿真、样品制备、实际应用等多个角度介绍了信息超材料对电磁波全面而灵活的调控能力,着重探讨了编码超材料在太赫兹领域的发展以及应用,最后阐述了现场可编程超材料的原理及其在构建新型成像系统、新概念雷达中的应用。信息超材料与超表面对太赫兹波束的灵活调控可用于制作波束分离、低雷达散射截面等多种功能器件,为太赫兹频段电磁波的实时调控开辟了新的途径。In this paper, we review the recent developments on information metamaterials, including digital metamaterials, coding metamaterials, and programmable metamaterials; furthermore, we discuss their applications in the terahertz（THz）-frequency region. In addition their flexibility to manipulate the electromagnetic waves, the physical principle, numerical simulation, fabrication, and application of information metamaterial are discussed in detail. Moreover, we developed and applied a coding metasurface that works in the THz band. Furthermore, the principle of real-time programmable metamaterials and their application in novel imaging systems and radar systems are illustrated. Information metamaterials and metasurfaces can be used for various functional devices such as beam splitting and low radar cross section, which open up a novel route to manipulate THz radiations.

关 键 词：太赫兹 信息超材料 编码超表面 数字可编程 雷达 

分 类 号：O441.4[理学—电磁学]