Asynchronous Space-Time-Coding Digital Metasurface-Based Multi-Frequency Holograms

Si Ran Wang; Zheng Xing Wang; Xinxin Gao; Geng-Bo Wu

doi:10.1109/ICMMT65948.2025.11188652

Asynchronous Space-Time-Coding Digital Metasurface-Based Multi-Frequency Holograms

Si Ran Wang, Zheng Xing Wang, Xinxin Gao, Geng-Bo Wu^*

^*Corresponding author for this work

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

Abstract

This paper introduces an asynchronous space-timecoding digital metasurface (ASTCM)-based holography architecture. While metasurface-based holograms with ultrathin profiles and advanced wavefront engineering capabilities have significantly advanced holography techniques, conventional programmable metasurfaces are limited by discrete phase states, hindering precise image reconstruction. Additionally, traditional designs cannot operate across multiple frequencies simultaneously. To overcome these challenges, the ASTCM enables continuous phase manipulation at multiple nonlinear harmonics, facilitating the creation of high-precision, multi-frequency holograms. Both theoretical and simulation results demonstrate that ASTCM-based holograms achieve superior image accuracy and significantly enhance the efficiency of holography systems through multi-frequency operation. © 2025 IEEE.

Original language	English
Title of host publication	2025 International Conference on Microwave and Millimeter Wave Technology (ICMMT 2025) - Proceedings
Publisher	IEEE
Number of pages	3
ISBN (Electronic)	979-8-3315-2573-6
ISBN (Print)	979-8-3315-2574-3
DOIs	https://doi.org/10.1109/ICMMT65948.2025.11188652
Publication status	Published - 2025
Event	16th International Conference on Microwave and Millimeter Wave Technology (ICMMT 2025) - Xi’an Qujiang International Convention Center, Xi'an, China Duration: 19 May 2025 → 22 May 2025

Publication series

Name	ICMMT - International Conference on Microwave and Millimeter Wave Technology
ISSN (Print)	2994-3132
ISSN (Electronic)	2994-3124

Conference

Conference	16th International Conference on Microwave and Millimeter Wave Technology (ICMMT 2025)
Place	China
City	Xi'an
Period	19/05/25 → 22/05/25

Funding

This work is supported by the Shenzhen Natural Science Foundation Program JCYJ20230807114911024, the University Grants Committee/Research Grants Council of the Hong Kong Special Administrative Region CityU 21207824, and City University of Hong Kong under Grant CityU 9610655.

Research Keywords

Asynchronous
hologram
holography
metasurface
multi-frequency

RGC Funding Information

RGC-funded

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10.1109/ICMMT65948.2025.11188652

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Cite this

Wang, S. R., Wang, Z. X., Gao, X., & Wu, G.-B. (2025). Asynchronous Space-Time-Coding Digital Metasurface-Based Multi-Frequency Holograms. In 2025 International Conference on Microwave and Millimeter Wave Technology (ICMMT 2025) - Proceedings (ICMMT - International Conference on Microwave and Millimeter Wave Technology). IEEE. https://doi.org/10.1109/ICMMT65948.2025.11188652

@inproceedings{f0589c32000c4ae5a1430ed010f71ba3,

title = "Asynchronous Space-Time-Coding Digital Metasurface-Based Multi-Frequency Holograms",

abstract = "This paper introduces an asynchronous space-timecoding digital metasurface (ASTCM)-based holography architecture. While metasurface-based holograms with ultrathin profiles and advanced wavefront engineering capabilities have significantly advanced holography techniques, conventional programmable metasurfaces are limited by discrete phase states, hindering precise image reconstruction. Additionally, traditional designs cannot operate across multiple frequencies simultaneously. To overcome these challenges, the ASTCM enables continuous phase manipulation at multiple nonlinear harmonics, facilitating the creation of high-precision, multi-frequency holograms. Both theoretical and simulation results demonstrate that ASTCM-based holograms achieve superior image accuracy and significantly enhance the efficiency of holography systems through multi-frequency operation. {\textcopyright} 2025 IEEE.",

keywords = "Asynchronous, hologram, holography, metasurface, multi-frequency",

author = "Wang, {Si Ran} and Wang, {Zheng Xing} and Xinxin Gao and Geng-Bo Wu",

year = "2025",

doi = "10.1109/ICMMT65948.2025.11188652",

language = "English",

isbn = "979-8-3315-2574-3",

series = "ICMMT - International Conference on Microwave and Millimeter Wave Technology",

publisher = "IEEE",

booktitle = "2025 International Conference on Microwave and Millimeter Wave Technology (ICMMT 2025) - Proceedings",

address = "United States",

note = "16th International Conference on Microwave and Millimeter Wave Technology (ICMMT 2025) ; Conference date: 19-05-2025 Through 22-05-2025",

}

Wang, SR, Wang, ZX, Gao, X & Wu, G-B 2025, Asynchronous Space-Time-Coding Digital Metasurface-Based Multi-Frequency Holograms. in 2025 International Conference on Microwave and Millimeter Wave Technology (ICMMT 2025) - Proceedings. ICMMT - International Conference on Microwave and Millimeter Wave Technology, IEEE, 16th International Conference on Microwave and Millimeter Wave Technology (ICMMT 2025), Xi'an, China, 19/05/25. https://doi.org/10.1109/ICMMT65948.2025.11188652

Asynchronous Space-Time-Coding Digital Metasurface-Based Multi-Frequency Holograms. / Wang, Si Ran; Wang, Zheng Xing; Gao, Xinxin et al.
2025 International Conference on Microwave and Millimeter Wave Technology (ICMMT 2025) - Proceedings. IEEE, 2025. (ICMMT - International Conference on Microwave and Millimeter Wave Technology).

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

TY - GEN

T1 - Asynchronous Space-Time-Coding Digital Metasurface-Based Multi-Frequency Holograms

AU - Wang, Si Ran

AU - Wang, Zheng Xing

AU - Gao, Xinxin

AU - Wu, Geng-Bo

PY - 2025

Y1 - 2025

N2 - This paper introduces an asynchronous space-timecoding digital metasurface (ASTCM)-based holography architecture. While metasurface-based holograms with ultrathin profiles and advanced wavefront engineering capabilities have significantly advanced holography techniques, conventional programmable metasurfaces are limited by discrete phase states, hindering precise image reconstruction. Additionally, traditional designs cannot operate across multiple frequencies simultaneously. To overcome these challenges, the ASTCM enables continuous phase manipulation at multiple nonlinear harmonics, facilitating the creation of high-precision, multi-frequency holograms. Both theoretical and simulation results demonstrate that ASTCM-based holograms achieve superior image accuracy and significantly enhance the efficiency of holography systems through multi-frequency operation. © 2025 IEEE.

AB - This paper introduces an asynchronous space-timecoding digital metasurface (ASTCM)-based holography architecture. While metasurface-based holograms with ultrathin profiles and advanced wavefront engineering capabilities have significantly advanced holography techniques, conventional programmable metasurfaces are limited by discrete phase states, hindering precise image reconstruction. Additionally, traditional designs cannot operate across multiple frequencies simultaneously. To overcome these challenges, the ASTCM enables continuous phase manipulation at multiple nonlinear harmonics, facilitating the creation of high-precision, multi-frequency holograms. Both theoretical and simulation results demonstrate that ASTCM-based holograms achieve superior image accuracy and significantly enhance the efficiency of holography systems through multi-frequency operation. © 2025 IEEE.

KW - Asynchronous

KW - hologram

KW - holography

KW - metasurface

KW - multi-frequency

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UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-105020785667&origin=recordpage

U2 - 10.1109/ICMMT65948.2025.11188652

DO - 10.1109/ICMMT65948.2025.11188652

M3 - RGC 32 - Refereed conference paper (with host publication)

SN - 979-8-3315-2574-3

T3 - ICMMT - International Conference on Microwave and Millimeter Wave Technology

BT - 2025 International Conference on Microwave and Millimeter Wave Technology (ICMMT 2025) - Proceedings

PB - IEEE

T2 - 16th International Conference on Microwave and Millimeter Wave Technology (ICMMT 2025)

Y2 - 19 May 2025 through 22 May 2025

ER -

Asynchronous Space-Time-Coding Digital Metasurface-Based Multi-Frequency Holograms

Abstract

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Research Keywords

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ECS: Advanced and Green Beamforming Metasurface Antennas for 6G

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Asynchronous Space-Time-Coding Digital Metasurface-Based Multi-Frequency Holograms

Abstract

Publication series

Conference

Funding

Research Keywords

RGC Funding Information

Access Output

Other Access Options

Permanent Link

Other Files and Links

Fingerprint

Projects

ECS: Advanced and Green Beamforming Metasurface Antennas for 6G

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