太赫兹信息超材料与超表面

刘峻峰; 刘硕; 傅晓建; 崔铁军

doi:10.12000/JR17100

太赫兹信息超材料与超表面

DOI: 10.12000/JR17100

东南大学信息科学与工程学院毫米波国家重点实验室南京 210096

基金项目: 国家重大仪器专项(36-10-1315), 国家自然科学基金(61302020, 61631007, 61571117, 61501112, 61501117, 61522106, 61722106, 61701107)

详细信息

作者简介:
刘峻峰(1990–)，男，山东泰安人，在读博士，2012年于电子科技大学获得学士学位，研究方向为新型人工电磁材料。E-mail: ihrton@163.com

刘　硕(1988–)，男，河北赞皇人，博士。2017年于东南大学获得博士学位，现于英国伯明翰大学物理与天文学学院做博士后研究工作。主要研究方向为新型人工电磁材料。E-mail: liushuo.china@qq.com

傅晓建(1986–)，男，浙江龙游人，博士。2009年于浙江大学获得工学学士学位，2014年于清华大学获得工学博士学位，目前研究方向为新型人工电磁材料及太赫兹电磁材料与器件。E-mail: fuxj@seu.edu.cn

崔铁军(1965–)，男，河北滦平人，博士，教授。1987年、1990年、1993年于西安电子科技大学分别获得学士、硕士、博士学位，现任东南大学信息科学与工程学院教授，博士生导师。主要从事计算电磁学和新型人工电磁材料方面的研究。E-mail: tjcui@seu.edu.cn

通讯作者:
崔铁军 tjcui@seu.edu.cn

中图分类号: O441.4
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出版历程
- 收稿日期: 2017-11-06
- 修回日期: 2018-01-14
- 网络出版日期: 2018-02-28

Terahertz Information Metamaterials and Metasurfaces

School of Information Science and Engineering, State Key Laboratory of Millimeter Wave, Southeast University, Nanjing 210096, China

Funds: The National S&T Major Project (36-10-1315), The National Natural Science Foundation of China (61302020, 61631007, 61571117, 61501112, 61501117, 61522106, 61722106, 61701107)

摘要

摘要: 该文对信息超材料，包括数字超材料、编码超材料、以及可编程超材料的研究进展及其在太赫兹领域的应用进行了综述，从原理分析、数值仿真、样品制备、实际应用等多个角度介绍了信息超材料对电磁波全面而灵活的调控能力，着重探讨了编码超材料在太赫兹领域的发展以及应用，最后阐述了现场可编程超材料的原理及其在构建新型成像系统、新概念雷达中的应用。信息超材料与超表面对太赫兹波束的灵活调控可用于制作波束分离、低雷达散射截面等多种功能器件，为太赫兹频段电磁波的实时调控开辟了新的途径。
- 太赫兹 /
- 信息超材料 /
- 编码超表面 /
- 数字可编程 /
- 雷达
Abstract: In this paper, we review the recent developments on information metamaterials, including digital metamaterials, coding metamaterials, and programmable metamaterials; furthermore, we discuss their applications in the terahertz (THz)-frequency region. In addition their flexibility to manipulate the electromagnetic waves, the physical principle, numerical simulation, fabrication, and application of information metamaterial are discussed in detail. Moreover, we developed and applied a coding metasurface that works in the THz band. Furthermore, the principle of real-time programmable metamaterials and their application in novel imaging systems and radar systems are illustrated. Information metamaterials and metasurfaces can be used for various functional devices such as beam splitting and low radar cross section, which open up a novel route to manipulate THz radiations.
- Terahertz /
- Information metamaterials /
- Coding metasurface /
- Digital and programmable /
- Radar

HTML全文

图 1 基于广义斯涅耳定律的的电磁超表面^[2]

Figure 1. Metasurface based on generalized reflection and refraction laws^[2]

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图 2 反射型的编码超表面基本单元^[11]

Figure 2. The Metamaterials particle for realizing the coding metasurface^[11]

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图 3 反射型的编码超表面以及散射方向图^[11]

Figure 3. The coding metasurface and reflected directivity pattern^[11]

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图 4 反射型的编码超表面及其单元结构^[16]

Figure 4. Coding metasurface and Minkowski coding particle^[16]

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图 5 反射型的编码超表面单元的设计^[16]

Figure 5. The design of Minkowski coding particles of metasurface^[16]

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图 6 具有金属背板的太赫兹低散射表面加工流程及样品部分照片^[16]

Figure 6. The fabrication process for the coding metasurface and part of the fabricated sample^[16]

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图 7 基于半导体材料的可调控太赫兹超材料结构^[22]

Figure 7. The controllable THz metamaterails based on semiconductor^[22]

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图 8 数字超材料单元结构以及相位曲线^[11]

Figure 8. The metamaterial particle for realizing the digital metasurface and the corresponding phase responses^[11]

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图 9 由可编程超表面生成动态全息成像的示意图^[23]

Figure 9. Dynamic holographic imaging based on programmable metasurface^[23]

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图 10 由现场可编程超表面实现的新概念雷达系统^[11]

Figure 10. The proposed new concept radar systems based programmable metasurface^[11]

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图 11 (a)–(d)现场可编程超表面在不同编码序列下的散射场仿真结果，其中(a)对应的编码序列为“000000”，(b)对应的编码序列为“111111”，(c)对应的编码序列为“010101”，(d)对应的编码序列为“001011”，(e)–(h)为与之对应的测试结果^[11]

Figure 11. Numerical simulation results of scattering patterns for digital metasurface under different coding sequences: (a) 000000, (b) 111111, (c) 010101 and (d) 001011. (e)–(h) Experimental results of scattering patterns for the digital metasurface under different coding sequences: (e) 000000, (f) 111111, (g) 010101 and (h) 001011^[11]

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