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相关概念视频

Phase Contrast and Differential Interference Contrast Microscopy01:26

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In-phase-contrast microscopes, interference between light directly passing through a cell and light refracted by cellular components is used to create high-contrast, high-resolution images without staining. It is the oldest and simplest type of microscope that creates an image by altering the wavelengths of light rays passing through the specimen. Altered wavelength paths are created using an annular stop in the condenser. The annular stop produces a hollow cone of...
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Digital Inline Holographic Microscopy DIHM of Weakly-scattering Subjects
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非干扰度的独立单拍全息相机,使用反射衍射成像.

Jeonghun Oh1,2, Herve Hugonnet1,2, YongKeun Park3,4,5

  • 1Department of Physics, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea.

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这项研究引入了一种全息图像传感器. 它从单个图像中重建复杂的光幅,使扩散物体的3D全息成像无需复杂的设置.

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科学领域:

  • 光学和光子学 在光学和光子学.
  • 计算成像技术的成像

背景情况:

  • 传统的全息相机需要振幅和相位测量,以进行数值重定焦和深度信息.
  • 参考辅助全息技术受到振动灵敏度和复杂的光学设置的限制.
  • 现有的非干涉测量方法通常需要对象约束或多重强度图像.

研究的目的:

  • 为了展示一个新的全息图像传感器.
  • 从单一强度图像中重建分散光的复杂幅度.
  • 克服现有的全息成像技术的局限性.

主要方法:

  • 开发一个全息图像传感器.
  • 使用相互衍射成像用于复杂的振幅重建.
  • 单强度图像采集. 一次强度图像采集.

主要成果:

  • 从单强度图像中成功重建复杂的振幅.
  • 对3D扩散物体进行全息成像的实验演示.
  • 在静态和动态条件下对各种样品进行成像.

结论:

  • 展示的全息图像传感器有效地从单个强度图像中重建复杂的光场信息.
  • 相互衍射成像为全息成像提供了一种可行的非干扰度方法.
  • 该技术显示出在静态和动态3D成像中各种应用的潜力.