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Angle-dependent multifunctional metasurfaces for wave diffusing under oblique incident angles

delete2025-05-15
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PRE
AI
K
Keyu Li
C
Chang-Hui Shen
H
Hongchen Chu *
Y
Yun Lai *
DOI:10.1063/5.0258161delete
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摘要

摘要

En 中文
入射角依赖的波前调控,特别是在透射中,在电磁波领域具有高度需求。在本工作中,我们展示了一种独特的角度依赖型多功能超表面(ADMMs),其在不同入射角照射下表现出不同的波前控制功能。ADMMs由两种透射型元原子组成,它们在正入射下具有相同的透射相位,但在60度斜入射下存在π相位差。这种独特的透射相位差源于两种元原子相反的角色散特性。通过随机排列这两种元原子,透射波前在斜入射下能够被有效扩散。然而,在正入射下,无论元原子的排列如何,透射波前均保持不变。这一功能通过数值模拟和微波实验均得到验证,两者结果高度一致。我们的发现为入射角依赖的波扩散器件铺平了道路,其在无线通信和角色散器件方面具有潜在应用。
Keyword:
BAND ACHROMATIC METALENS
PROPAGATING WAVES
REFLECTION
LIGHT
EFFICIENT

期刊

Applied Physics Letters 封面图
Applied Physics Letters
IF:
3.6
论文数:
10.4W
被引数:
17.8W

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暂无机构信息
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