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电子科技大学电子科学与工程学院,四川成都 611731
Received:29 November 2022,
Revised:2023-07-25,
Published:25 October 2023
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周天驰,陈蓝,吴虹汝等.太赫兹动态超表面[J].电子学报,2023,51(10):2635-2650.
ZHOU Tian-chi,CHEN Lan,WU Hong-ru,et al.Terahertz Active Metasurfaces[J].ACTA ELECTRONICA SINICA,2023,51(10):2635-2650.
周天驰,陈蓝,吴虹汝等.太赫兹动态超表面[J].电子学报,2023,51(10):2635-2650. DOI: 10.12263/DZXB.20221351.
ZHOU Tian-chi,CHEN Lan,WU Hong-ru,et al.Terahertz Active Metasurfaces[J].ACTA ELECTRONICA SINICA,2023,51(10):2635-2650. DOI: 10.12263/DZXB.20221351.
太赫兹波段处于微波、毫米波与光波段之间,其相关技术对下一代高速通信、高分辨成像、智能感通一体等多个信息领域的发展具有重要的意义.发展太赫兹应用技术需要对太赫兹波束进行操控和信息加载.动态超表面作为一种新型的实现结构和器件,是实现该功能的重要途径之一.本文将以太赫兹动态超表面的调控功能作为分类依据,从相辅相成的材料、结构、机理及其最终表现的应用演示对幅度调控、相位调控、极化调控、波束调控、高阶非线性调控太赫兹动态超表面5个方面进行了概述,介绍了不同类型动态超表面的相似性与独特性,并对部分工作进行了指标对比.最后,展望了太赫兹动态超表面的发展趋势.本文希望更多学者可以了解太赫兹动态超表面,并促进此领域的发展.
The terahertz band lies between the microwave-millimeter wave band and the optical band
and its related technologies are of great significance for the development of next-generation high-speed communication
high-resolution imaging
intelligent sensor-communication integration systems and other information fields. The development of terahertz application technology requires terahertz beam manipulation and information loading. As a new realization scheme and device
active metasurface is one of the important ways to realize these functions. In this paper
the terahertz dynamic metasurface is classified according to the regulation function of the metasurface
the amplitude regulation
phase regulation
polarization regulation
beam regulation and high-order nonlinear regulation of the terahertz dynamic metasurface are introduced from the complementary materials technology
structure setup
and working mechanisms and their performance in the application demonstrations. The similarity and uniqueness of different types of dynamic metasurface are introduced
and some of the performances are compared. At the end of this paper
the development trend of the terahertz dynamic metasurface is forecasted. It is hoped that this paper helps more scholars get knowledge of terahertz dynamic metasurface hence promoting the development of this field.
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