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相关概念视频

Phase Contrast and Differential Interference Contrast Microscopy01:26

Phase Contrast and Differential Interference Contrast Microscopy

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Phase-Contrast Microscopes
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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相关实验视频

Updated: Jun 5, 2025

High-resolution, High-speed, Three-dimensional Video Imaging with Digital Fringe Projection Techniques
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使用方形和六角干扰装置进行二维定量近场相位成像.

Petr Dvořák1,2, Pavel Klok1, Michal Kvapil1,2

  • 1Institute of Physical Engineering, Brno University of Technology, Technická 2, 616 69 Brno, Czech Republic.

Nanophotonics (Berlin, Germany)
|December 5, 2024
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概括

研究人员使用表面等离子体干扰装置创建了近场相位分布. 这一突破使相位物体的精确控制和成像成为可能,进步了近场显微镜技术.

关键词:
在SNOM中,SNOM是SNOM.在SPP中,波浪是SPP波浪.干扰纳米结构 干扰纳米结构在近距离的场地.阶段成像成像技术的阶段成像.

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Quantitative Optical Microscopy: Measurement of Cellular Biophysical Features with a Standard Optical Microscope
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Quantitative Optical Microscopy: Measurement of Cellular Biophysical Features with a Standard Optical Microscope

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Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating
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Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating

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相关实验视频

Last Updated: Jun 5, 2025

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Quantitative Optical Microscopy: Measurement of Cellular Biophysical Features with a Standard Optical Microscope
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科学领域:

  • 塑学和纳米光子学
  • 接近场光学近场光学
  • 表面等离子体 极光子

背景情况:

  • 控制近场相对于先进的光学成像至关重要.
  • 表面等离子极子 (SPP) 具有独特的光物质相互作用特性.
  • 现有的方法缺乏对近场相分布的精确控制.

研究的目的:

  • 用表面等离子干扰装置证明近场相位分布的形成.
  • 通过实验图像和定量分析这些相位分布.
  • 调查近场阶段的起源和控制机制.

主要方法:

  • 表面等离子干扰装置的制造.
  • 近场相位显微镜用于定量相位成像.
  • 控制照明偏振和设备区域.
  • 数字和分析电磁建模.

主要成果:

  • 证明了近场的形成与非微不足道的相位分布.
  • 由照明极化和设备几何学控制的相位分布.
  • 确定了SPP的外平面电气组件作为近场相的起源.
  • 成功形成了具有可控制传播方向的近场平面波.

结论:

  • 表面等离子干扰装置可以精确控制近场相位.
  • 开发的模型准确地预测和解释观察到的相位现象.
  • 这项工作为相位物体的近场成像和断层扫描铺平了道路.