热门
Electrically Tunable Metasurface with Independent Frequency and Amplitude Modulations
文献类型：期刊论文
| 作者 | Zhang, Jin3; Wei, Xingzhan2 ; Rukhlenko, Ivan D.1,5; Chen, Hou-Tong4; Zhu, Weiren3
|
| 刊名 | ACS PHOTONICS
 |
| 出版日期 | 2020 |
| 卷号 | 7期号:1页码:265-271 |
| 关键词 | graphene electrically tunable metasurface dual-tunability |
| ISSN号 | 2330-4022 |
| DOI | 10.1021/acsphotonics.9b01532 |
| 通讯作者 | Zhu, Weiren(weiren.zhu@sjtu.edu.cn) |
| 英文摘要 | Metasurfaces with actively tunable features are highly demanded for advanced applications in electronic and electromagnetic systems. However, realizing independent dual-tunability remains challenging and requires more efforts. In this paper, we present an active metasurface where the magnitude and frequency of the resonant absorption can be continuously and independently tuned through application of voltage biases. Such a dual-tunability is accomplished at microwave frequencies by combining a varactor-loaded high-impedance surface and a graphene-based sandwich structure. By electrically controlling the Fermi energy of graphene and the capacitance of varactor diodes, we experimentally demonstrate the independent shifting of the working frequency from 3.41 to 4.55 GHz and tuning of the reflection amplitude between -3 and -30 dB, which is in excellent agreement with full-wave numerical simulations. We further employed an equivalent lumped circuit model to elucidate the mechanism of the dual-tunability resulting from the graphene-based sandwich structure and the active high-impedance surface. We speculate that such a dual-tunability scheme can be potentially extended to terahertz and optical regimes by employing different active/dynamical tuning methods and materials integration, thereby enabling a variety of practical applications. |
| 资助项目 | National Natural Science Foundation of China (NSFC)[61701303] ; National Natural Science Foundation of China (NSFC)[11574308] ; Natural Science Foundation of Shanghai[17ZR1414300] ; Russian Science Foundation (RSF)[19-13-00332] ; Los Alamos National Laboratory Laboratory-Directed Research and Development (LDRD) program ; U.S. Department of Energy's NNSA[89233218CNA000001] |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Optics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000508475800031 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/10216]  |
| 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.ITMO Univ, Informat Opt Technol Ctr, St Petersburg 197101, Russia 2.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China 3.Shanghai Jiao Tong Univ, Dept Elect Engn, Shanghai 200240, Peoples R China 4.Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA 5.Univ Sydney, Sch Phys, IPOS, Camperdown, NSW 2006, Australia |
| 推荐引用方式 GB/T 7714 | Zhang, Jin,Wei, Xingzhan,Rukhlenko, Ivan D.,et al. Electrically Tunable Metasurface with Independent Frequency and Amplitude Modulations[J]. ACS PHOTONICS,2020,7(1):265-271. |
| APA | Zhang, Jin,Wei, Xingzhan,Rukhlenko, Ivan D.,Chen, Hou-Tong,&Zhu, Weiren.(2020).Electrically Tunable Metasurface with Independent Frequency and Amplitude Modulations.ACS PHOTONICS,7(1),265-271. |
| MLA | Zhang, Jin,et al."Electrically Tunable Metasurface with Independent Frequency and Amplitude Modulations".ACS PHOTONICS 7.1(2020):265-271. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。