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Omnidirectional Angular-Multiplexed Meta-Holography via Arbitrary Spatial Rays

delete2025-08-11
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PRE
AI
C
Chao Xu
Y
Yangyang Shi *
S
Shuai Wan
Z
Zirui Zhao
Z
Zejing Wang
G
Guozhen Liang
Z
Zile Li
Y
Yongquan Zeng
Z
Zhongyang Li *
DOI:10.1002/lpor.202500765delete
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摘要

摘要

En 中文
超构表面展现出卓越的光调控能力,通过广泛探索和利用各种光学参数(包括波长、强度、偏振、轨道角动量等),实现了光学复用的新型自由度(DoF)。然而,作为重要的光学参数,任意入射角自由度尚未得到充分开发,并因缺乏有效的相位编码和融合机制而构成关键挑战。本文首次提出任意空间入射角自由度(包括方位角和俯仰角),通过在整个角度空间中实施有效相位编码,实现了任意角自由度的完全利用。具体而言,通过关联超原子位移与空间光线的任意预设角度,并利用梯度下降算法优化其绕行相位,成功演示了视场内多达22路增强现实(AR)全息图像。数值模拟和实验结果均表明,针对新引入的任意入射角自由度,可有效实现相位编码。所展示的任意全角复用全息术具有高信息密度和优良质量,显示出在数据存储、虚拟/增强现实和光学加密等实际应用中的巨大潜力。
Keyword:
arbitrary omnidirectional angular-multiplexed
holography
high-capacity optical encryption
meta-display

期刊

L
Laser and Photonics Reviews
IF:
10
论文数:
3.7K
被引数:
2.1W

机构

W
wuhan university
学者数:
8.1W
论文数: 5.8W
被引数: 70
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