Dynamic Scattering Steering with Graphene-Based Coding Metamirror

doi:10.1002/adom.202000683

	Dynamic Scattering Steering with Graphene-Based Coding Metamirror
	Zhang, Jin 3; Zhang, Heng 1; Yang, Weixu 2; Chen, Ke 2; Wei, Xingzhan 1; Feng, Yijun 2; Jin, Ronghong 3; Zhu, Weiren 3
刊名	ADVANCED OPTICAL MATERIALS
	2020-07-26
页码	8
关键词	coding metasurfaces diffusion dynamic control graphene scattering
ISSN号	2195-1071
DOI	10.1002/adom.202000683
通讯作者	Zhu, Weiren(weiren.zhu@sjtu.edu.cn)
英文摘要	The recent development of metasurfaces offers a unique technique for the arbitrary control of electromagnetic waves by spatially manipulating their amplitudes and phases. However, real time control in metasurfaces typically depends solely on dynamical phase modulation, but lacks of the amplitude modulation. In this paper, the dynamical amplitude modulation is tried to combine with phase coding metasurface, for the dynamical manipulation of electromagnetic scattering at microwave frequencies. Such an active metasurface is achieved by placing a patterned graphene layer on binary metallic resonators. When applying bias voltages on the graphene layer, continuous reflection amplitude modulation can be achieved for the selected resonators while the others are not affected. By this merit, two degrees of freedom, preset phase coding and dynamical amplitude modulation, are obtained to control the electromagnetic wave. As an example, a metasurface that can dynamically and continuously control the scattering pattern from mirror reflection to diffusion scattering is shown. The above concepts and physical phenomena are confirmed by numerical simulations and experiments.
资助项目	National Natural Science Foundation of China (NSFC)[61701303] ; National Natural Science Foundation of China (NSFC)[51777168] ; Natural Science Foundation of Shanghai[17ZR1414300]
WOS研究方向	Materials Science ; Optics
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000552289500001
内容类型	期刊论文
源URL	[http://119.78.100.138/handle/2HOD01W0/11296]
专题	中国科学院重庆绿色智能技术研究院
通讯作者	Zhu, Weiren
作者单位	1.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China 2.Nanjing Univ, Sch Elect Sci & Engn, Nanjing 210023, Peoples R China 3.Shanghai Jiao Tong Univ, Dept Elect Engn, Shanghai 200240, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Jin,Zhang, Heng,Yang, Weixu,et al. Dynamic Scattering Steering with Graphene-Based Coding Metamirror[J]. ADVANCED OPTICAL MATERIALS,2020:8.
APA	Zhang, Jin.,Zhang, Heng.,Yang, Weixu.,Chen, Ke.,Wei, Xingzhan.,...&Zhu, Weiren.(2020).Dynamic Scattering Steering with Graphene-Based Coding Metamirror.ADVANCED OPTICAL MATERIALS,8.
MLA	Zhang, Jin,et al."Dynamic Scattering Steering with Graphene-Based Coding Metamirror".ADVANCED OPTICAL MATERIALS (2020):8.