Graphene-empowered dynamic metasurfaces and metadevices  

作　　者：Chao Zeng Hua Lu Dong Mao Yueqing Du He Hua Wei Zhao Jianlin Zhao 

机构地区：[1]MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions,and Shaanxi Key Laboratory of Optical Information Technology,School of Physical Science and Technology,Northwestern Polytechnical University,Xi’an 710129,China [2]State Key Laboratory of Transient Optics and Photonics,Xi’an Institute of Optics and Precision Mechanics,Chinese Academy of Sciences,Xi’an 710119,China

出　　处：《Opto-Electronic Advances》2022年第4期1-47,共47页光电进展（英文）

基　　金：supported by the National Key R&D Program of China (2017YFA0303800);the National Natural Science Foundation of China (61805277, 11634010, 91950207, 11974283, 11774290);the Fundamental Research Funds for the Central Universities (3102017AX009, 3102019PY002, 3102019JC008);the Natural Science Basic Research Program of Shaanxi (2019JQ-447, 2020JM-130)

摘　　要：Metasurfaces,with extremely exotic capabilities to manipulate electromagnetic(EM)waves,have derived a plethora of advanced metadevices with intriguing functionalities.Tremendous endeavors have been mainly devoted to the static metasurfaces and metadevices,where the functionalities cannot be actively tuned in situ post-fabrication.Due to the in-trinsic advantage of active tunability by external stimulus,graphene has been successively demonstrated as a favorable candidate to empower metasurfaces with remarkably dynamic tunability,and their recent advances are propelling the EM wave manipulations to a new height:from static to dynamic.Here,we review the recent progress on dynamic metasur-faces and metadevices enabled by graphene with the focus on electrically-controlled dynamic manipulation of the EM waves covering the mid-infrared,terahertz,and microwave regimes.The fundamentals of graphene,including basic ma-terial properties and plasmons,are first discussed.Then,graphene-empowered dynamic metasurfaces and met-adevices are divided into two categories,i.e.,metasurfaces with building blocks of structured graphene and hybrid metasurfaces integrated with graphene,and their recent advances in dynamic spectrum manipulation,wavefront shap-ing,polarization control,and frequency conversion in near/far fields and global/local ways are elaborated.In the end,we summarize the progress,outline the remaining challenges,and prospect the potential future developments.

关 键 词：metasurface dynamic metasurface GRAPHENE graphene plasmons light field manipulation electromagnetic wave manipulation 

分 类 号：TN03[电子电信—物理电子学] TB34[一般工业技术—材料科学与工程]