Journal
NANOMATERIALS
Volume 12, Issue 12, Pages -Publisher
MDPI
DOI: 10.3390/nano12122097
Keywords
terahertz wave; graphene; metamaterial
Categories
Funding
- National Key Research and Development Program of China [2021YFA1401000]
- China Postdoctoral Science Foundation [2021M700706]
- National Science Foundation of China [61975025, U2130106, 61901093]
- National Key Research and Development Program [2021YFB2800602]
- Key project of Zhejiang Laboratory [2020KFY00562]
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This article reviews the properties and applications of graphene metamaterials, with a focus on optically and electrically actuated terahertz applications. The article concludes with a brief examination of the potential prospects for graphene metamaterials.
In recent years, terahertz waves have attracted significant attention for their promising applications. Due to a broadband optical response, an ultra-fast relaxation time, a high nonlinear coefficient of graphene, and the flexible and controllable physical characteristics of its meta-structure, graphene metamaterial has been widely explored in interdisciplinary frontier research, especially in the technologically important terahertz (THz) frequency range. Here, graphene's linear and nonlinear properties and typical applications of graphene metamaterial are reviewed. Specifically, the discussion focuses on applications in optically and electrically actuated terahertz amplitude, phase, and harmonic generation. The review concludes with a brief examination of potential prospects and trends in graphene metamaterial.
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