Real-time programmable metasurface for terahertz multifunctional wave front engineering
作者机构：Sichuan THz Communication Technology Engineering Research CenterSchool of Electronic Science and EngineeringUniversity of Electronic Science and Technology of ChinaChengdu 611731China Yangtze Delta Region Institute(Huzhou)University of Electronic Science and Technology of ChinaHuzhou 313000China Zhangjiang LaboratoryShanghai 201204China National Key Laboratory of Solid-State Microwave Devices and CircuitsHebei Semiconductor Research InstituteShijiazhuang 050051China Aerospace Information Research InstituteChinese Academy of SciencesBeijing 100094China University of Chinese Academy of SciencesSchool of ElectronicElectrical and Communication EngineeringBeijing 101408China Department of Electrical Engineering and Computer ScienceUniversity of MichiganAnn ArborMI 48109USA School of EngineeringBrown UniversityProvidenceRI 02912USA
出 版 物：《Light(Science & Applications)》 (光(科学与应用(英文版))
年 卷 期：2023年第12卷第9期
页 面：1795-1806页
核心收录：
学科分类：070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学]
基 金：This work was financially supported by National Key Research and Development Program of China(2021YFA1401000) National Natural Science Foundation of China(U20A20212,61931006,62131007,61921002,62101111 and 61901093) Fundamental Research Funds for the Central Universities(ZYGX2020ZB011) China Postdoctoral Science Foundation(2020M683285) the US National Science Foundation grant(1923782,1954780 and 2211616)
摘 要：Terahertz(THz)technologies have become a focus of research in recent years due to their prominent role in envisioned future communication and sensing *** of the key challenges facing the field is the need for tools to enable agile engineering of THz wave ***,we describe a reconfigurable metasurface based on GaN technology with an array-of-subarrays *** subwavelength-spaced array,under the control of a 1-bit digital coding sequence,can switch between an enormous range of possible configurations,providing facile access to nearly arbitrary wave front control for signals near 0.34 *** demonstrate wide-angle beam scanning with 1°of angular precision over 70 GHz of bandwidth,as well as the generation of multi-beam and diffuse wave fronts,with a switching speed up to 100 *** device,offering the ability to rapidly reconfigure a propagating wave front for beam-forming or diffusively scattered wide-angle coverage of a scene,will open new realms of possibilities in sensing,imaging,and networking.
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