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A synthetic moving-envelope metasurface antenna for independent control of arbitrary harmonic orders

Geng-Bo Wu (Co-first Author), Jun Yan Dai* (Co-first Author), Kam Man Shum, Ka Fai Chan, Qiang Cheng*, Tie Jun Cui*, Chi Hou Chan*

*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

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Abstract

Flexible frequency controls are crucial in many photonic and electronic applications, ranging from communications systems, spectroscopy, and metrology to quantum information processing. However, the state-of-the-art solutions based on nonlinear bulk media, electro-optic effect, and nonlinear metasurfaces incur very limited spectral controllability, and merely a couple of harmonic orders can be independently manipulated. Here, we theoretically propose and experimentally demonstrate synthetic moving-envelope metasurface antennas capable of simultaneously generating arbitrary harmonic orders and independently manipulating their wave properties in a software-defined manner. As proof-of-principle examples, we demonstrate unidirectional frequency transition, frequency comb generation, arbitrary harmonic orders independent control, and their applications in frequency-division multiplexing communications. All these complicated functionalities are achieved by the 1-bit spatiotemporally ON-OFF switching of meta-atoms of the waveguide-integrated metasurface antenna. Our proposed synthetic metasurface antenna solution greatly expands the frontiers of wave engineering and information manipulation, showing promising potential in wireless communications, spectroscopy, metrology, and quantum science. © The Author(s) 2024.
Original languageEnglish
Article number7202
Number of pages13
JournalNature Communications
Volume15
Online published22 Aug 2024
DOIs
Publication statusPublished - 2024

Funding

This work was supported in part by the National Key Research and Development Program of China under Grants 2023YFB3811502 (J.Y.D.), the University Grants Committee/Research Grants Council of the Hong Kong Special Administrative Region, China under Grant AoE/E-101/23-N (C.H.C.), CityU 21207824 (G.B.W.), City University of Hong Kong under Grant CityU 9610655 (G.B.W.), the National Natural Science Foundation of China for Distinguished Young Scholars under Grant 62225108 (Q.C.), the Shenzhen Natural Science Foundation Program JCYJ20230807114911024 (G.B.W.), the National Natural Science Foundation of China under Grants 62288101 (T.J.C. and Q.C.) and 62201139 (J.Y.D.), the Jiangsu Province Frontier Leading Technology Basic Research Project under Grant BK20212002 (T.J.C.), the Jiangsu Provincial Scientific Research Center of Applied Mathematics under Grant BK20233002 (Q.C.), the Fundamental Research Funds for the Central Universities under Grant 2242022k60003 (Q.C.) and 2242024RCB0005 (J.Y.D.), and the 111 Project under Grant 111-2-05 (T.J.C.).

Publisher's Copyright Statement

  • This full text is made available under CC-BY-NC-ND 4.0. https://creativecommons.org/licenses/by-nc-nd/4.0/

RGC Funding Information

  • RGC-funded

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    • ECS: Advanced and Green Beamforming Metasurface Antennas for 6G

      WU, G. (Principal Investigator / Project Coordinator)

      1/08/24 → …

      Project: Research

    • AoE(UGC): Advanced Antenna Technology for a Smart World

      LUK, K. M. (Principal Investigator / Project Coordinator), CHAN, C. H. (Co-Principal Investigator), GAO, S. (Co-Principal Investigator), LEUNG, K. W. (Co-Principal Investigator), LIN, W. (Co-Principal Investigator), LU, J. (Co-Principal Investigator), LUCYSZYN, S. (Co-Principal Investigator), Pang, S. (Co-Principal Investigator), TONG, K. F. K. (Co-Principal Investigator), WONG, H. (Co-Principal Investigator), WONG, M. H. A. (Co-Principal Investigator), ZHENG, S. (Co-Principal Investigator), LAU, V. K. N. (Co-Investigator), WANG, H. (Co-Investigator) & WONG, K.-K. (Co-Investigator)

      1/01/24 → …

      Project: Research

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