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相关概念视频

Transformation of Plane Strain01:12

Transformation of Plane Strain

196
When analyzing elongated structures like bars subjected to uniformly distributed loads, it is essential to understand the transformation of plane strain when coordinate axes are rotated. This transformation helps to assess how material deformation characteristics vary with orientation, which is crucial in materials science and structural engineering.
Under plane strain conditions, typical for members where one dimension significantly exceeds the others, deformations and resultant strains are...
196

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相关实验视频

Updated: Jul 23, 2025

Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms
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从体积到平面复合:没有布拉格效应的相位编码元表面.

Jia Chen1,2, Dapeng Wang3, Guangyuan Si4

  • 1School of Electronic Science and Engineering (National Model Microelectronics College), Xiamen University, Xiamen, 361005, China.

Advanced materials (Deerfield Beach, Fla.)
|July 18, 2023
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概括

研究人员通过使用表面波在2D元表面上演示相位编码复杂化,克服了集成光学的维度挑战. 这使得像光子数据处理中的全光路由等应用程序成为可能.

关键词:
布拉格衍射法是什么?光学复杂化元面的光学复杂化.正交相位编码的正交相位编码表面等离子体 polaritonsons 极光子

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相关实验视频

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科学领域:

  • 光学和光子学 在光学和光子学.
  • 地表表面技术的技术.
  • 纳米制造的纳米制造

背景情况:

  • 超表面为集成光学和光子芯片提供小型化.
  • 它们的二维性质限制了像布拉格衍射这样的三维光学技术的适应.
  • 在体积全息学中,布拉格衍射对于相位编码复杂化至关重要.

研究的目的:

  • 为了适应2D元表面的阶段编码复杂化.
  • 为了证明能够使用表面波进行多重复合的超表面.
  • 为了实现光子应用的基于代码的全光学路由.

主要方法:

  • 设计了一个超表面,用表面波取代自由空间光.
  • 利用表面波的平面干扰来模仿布拉格衍射.
  • 在2D元表面设计中实验证明了阶段编码复杂化.

主要成果:

  • 在2D元表面上成功实现了相位编码多重复合.
  • 表面波干扰有效地复制了布拉格衍射原理.
  • 通过使用多重化元表面展示了基于代码的全光学路由.

结论:

  • 超表面可以通过利用表面波来实现相位编码的多重复合.
  • 这种二维方法克服了传统光学的维度限制.
  • 能够实现先进的光子数据处理和通信功能.