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Customizing 3D Polarization Structures at Second Harmonic Frequency

delete2025-08-04
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OA
AI
R
Rong Rong
Y
Yan Li
Z
Zixian Hu
K
Kingfai Li
G
Guixin Li
S
Shumei Chen *
陈献忠 封面图
陈献忠 (Xianzhong Chen) *
DOI:10.1002/lpor.202501059delete
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摘要

摘要

En 中文
三维偏振结构因其独特的光学性质和额外的信息承载能力而受到越来越多的关注。尽管非线性光学超表面的二次谐波产生(SHG)已实现先进的偏振控制,但三维偏振结构的实现尚未有报道。本研究提出并实验演示了一种非线性超表面方法,可同时产生SHG光束并创建三维偏振结构。在基波(FW)线偏振光照射下,该方法的有效性通过模拟和实验演示了从环状到三维偏振结点的各种SHG偏振结构。这些结构上的SHG偏振分布可通过连续改变FW的线偏振态进一步调制。基于非线性超表面的三维偏振控制为产生具有定制三维偏振分布的SHG光束提供了新途径,这有望用于高维光学信息处理和加密。
Keyword:
3D polarization structures
nonlinear metasurfaces
second harmonic generation
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期刊

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

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harbin institute of technology
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heriot-watt university
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Zhengzhou University of Aeronautics
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Southern University of Science and Technology
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