Complete-basis-reprogrammable coding metasurface for generating dynamically-controlled holograms under arbitrary polarization states

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外文摘要：Reprogrammable metasurfaces,which establish a fascinating bridge between physical and information domains,can dy-namically control electromagnetic(EM)waves in real time and thus have attracted great attentions from researchers around the world.To control EM waves with an arbitrary polarization state,it is desirable that a complete set of basis states be controlled independently since incident EM waves with an arbitrary polarization state can be decomposed as a linear sum of these basis states.In this work,we present the concept of complete-basis-reprogrammable coding meta-surface(CBR-CM)in reflective manners,which can achieve independently dynamic controls over the reflection phases while maintaining the same amplitude for left-handed circularly polarized(LCP)waves and right-handed circularly polar-ized(RCP)waves.Since LCP and RCP waves together constitute a complete basis set of planar EM waves,dynamically-controlled holograms can be generated under arbitrarily polarized wave incidence.The dynamically reconfigurable meta-particle is implemented to demonstrate the CBR-CM's robust capability of controlling the longitudinal and transverse po-sitions of holograms under LCP and RCP waves independently.It's expected that the proposed CBR-CM opens up ways of realizing more sophisticated and advanced devices with multiple independent information channels,which may pro-vide technical assistance for digital EM environment reproduction.

外文关键词：

basis vector controlreprogrammable metasurfacedynamically-controlled hologramsarbitrary polarization statebroadband

作者：

Zuntian Chu、Xinqi Cai、Ruichao Zhu、Tonghao Liu、Huiting Sun、Tiefu Li、Yuxiang Jia、Yajuan Han、Shaobo Qu、Jiafu Wang

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作者单位：

Shaanxi Key Laboratory of Artificially-Structured Functional Materials and Devices,Air Force Engineering University,Xi'an 710051,China

Suzhou Laboratory,Suzhou 215000,China

Zhijian Laboratory,Rocket Force University of Engineering,Xi'an 710025,China

基金：

National Natural Science Foundation of ChinaNational Key Research and Development Program of ChinaYoung Talent Fund of Association for science and Technology in ShaanxiPostdoctoral Fellowship Program of CPSF

项目编号：

62101588SQ2022YFB380620020240129GZC20242285

出版年：

2024

DOI：

10.29026/oea.2024.240045

光电进展(英文版)

ISSN：

年,卷(期)：2024.7(9)

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