全息术
光学
波前
计算机科学
等离子体子
超分辨率
导波测试
超材料
物理
图像(数学)
人工智能
作者
Shiqing Li,Lixing Chen,Min Kang,Juan Deng,Jinhua Yan,Hang Zhang,Linfang Shen
出处
期刊:Optics Letters
[Optica Publishing Group]
日期:2025-06-09
卷期号:50 (13): 4390-4390
摘要
Metasurfaces can freely manipulate the wavefronts of incident beams, making them a highly effective platform for holographic imaging or nanoprinting. However, their on-chip integration is hindered by the need for external light excitation, and the resonant nature of the meta-atoms that compose them presents a challenge for achieving meta-image with super-resolution. In this work, by leveraging the unique dispersion properties of unidirectional guided waves instead of resonant meta-atoms, we introduce a novel approach to realize meta-imaging. We validate this approach through the design of two microwave metasurfaces utilizing metal-air-gyromagnetic unidirectional surface magnetoplasmons (USMPs). The metasurfaces efficiently convert guided waves into an image of the letter “A” and the Greek letter “ϕ” with super-resolution, which is a challenge for conventional meta-imaging. The strategy presented here offers a promising alternative for achieving meta-image displays, thus opening new possibilities for the development of integrated plasmonic networks and devices.
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