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Optical spatial differentiator for a synthetic three-dimensional optical field

机译:用于合成三维光学场的光空间微分器

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摘要

We propose a grating-based spatial differentiator to process a synthetic three-dimensional optical field, where several conventional two-dimensional optical images are stacked at multiple wavelengths. The device simultaneously enables both spatial differentiation and demultiplexing during light diffraction. We show the spatial differentiation resulting from coupling and interference of spatial modes and derive the theoretical condition for spatial differentiation based on spatial coupled-mode theory. We numerically investigate field transformation during diffraction and demonstrate spatial differentiation with image processing of edge detection for a synthetic three-dimensional optical field, where four images are stored at different wavelengths. (C) 2018 Optical Society of America
机译:我们提出了一种基于光栅的空间微分器来处理合成的三维光学场,其中若干常规的二维光学图像以多个波长堆叠。 该装置同时在光衍射期间能够在光衍射期间能够进行空间分化和解复用。 我们展示了空间模式的耦合和干扰产生的空间区分,并导出基于空间耦合模式理论的空间分化的理论条件。 我们在衍射期间进行数值调查域变换,并演示与合成三维光场的边缘检测的图像处理的空间区分,其中四个图像存储在不同的波长。 (c)2018年光学学会

著录项

  • 来源
    《Optics Letters》 |2018年第23期|共4页
  • 作者

    Fan Yisheng; Ruan Zhichao;

  • 作者单位

    Zhejiang Univ Dept Phys Hangzhou 310027 Zhejiang Peoples R China;

    Zhejiang Univ Dept Phys Hangzhou 310027 Zhejiang Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 计量学;光学;
  • 关键词

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