Constructing Metastructures with Broadband Electromagnetic Functionality

被引：112

作者：

Fan, Ren-Hao ^{[1
,2
]}

Xiong, Bo ^{[1
,2
]}

Peng, Ru-Wen ^{[1
,2
]}

Wang, Mu ^{[1
,2
]}

机构：

[1] Nanjing Univ, Sch Phys, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China

[2] Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China

来源：

ADVANCED MATERIALS | 2020年 / 32卷 / 27期

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

broadband electromagnetic functionality; electromagnetic metamaterials; metastructures; metasurfaces; REFRACTIVE-INDEX METAMATERIALS; TERAHERTZ METAMATERIAL; PERFECT ABSORBER; ACHROMATIC METALENS; NEGATIVE REFRACTION; POLARIZATION CONVERSION; CIRCULAR POLARIZERS; ANISOTROPIC METAMATERIALS; PHASE DISCONTINUITIES; ANOMALOUS REFLECTION;

D O I：

10.1002/adma.201904646

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Electromagnetic metastructures stand for the artificial structures with a characteristic size smaller than the wavelength, which may efficiently manipulate the states of light. However, their applications are often restricted by the bandwidth of the electromagnetic response of the metastructures. It is therefore essential to reassert the principles in constructing broadband electromagnetic metastructures. Herein, after summarizing the conventional approaches for achieving broadband electromagnetic functionality, some recent developments in realizing broadband electromagnetic response by dispersion compensation, nonresonant effects, and several trade-off approaches are reviewed, followed by some perspectives for the future development of broadband metamaterials. It is anticipated that broadband metastructures will have even more substantial applications in optoelectronics, energy harvesting, and information technology.

引用

页数：22

共 284 条

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