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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 27, 2025

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
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单射差相对比显微镜使用环状极化复杂化照明.

Shengping Wang1, Yifu Ma1, Mengyuan Xie1

  • 1Department of Optoelectronic Engineering, Jinan University, Guangzhou, China.

Journal of microscopy
|April 25, 2024
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概括

我们开发了一种新的显微镜技术,用于对未染色的生物样本进行一次性相位成像. 这种方法增强了对比度,减少了扭曲,使活细胞的高效动态成像成为可能.

关键词:
不同相位对比显微镜的微镜.两极分化的多重复合.环形的照明方式一次性成像成像技术

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Author Spotlight: Non-Invasive Imaging of Complex Bio-Structures Using Polarization-Sensitive Two-Photon Microscopy
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相关实验视频

Last Updated: Jun 27, 2025

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科学领域:

  • 显微镜的使用方法
  • 生物物理学的生物物理.
  • 光学成像技术的成像

背景情况:

  • 相对比显微镜对于可视化未染色的生物标本至关重要.
  • 传统方法通常需要多次暴露或染色,限制了动态研究.
  • 现有的技术在透明样本中难以实现高对比度和低扭曲.

研究的目的:

  • 引入一个单射差相位对比显微镜技术.
  • 为了使未染色的生物样本能够高效地进行相位成像.
  • 与现有方法相比,提高对比度和减少图像扭曲.

主要方法:

  • 采用环形LED阵列用于极化复合照明.
  • 采用偏振摄像头,在一次拍摄中同时采集多角度图像.
  • 实现偏振解复数,以恢复样本阶段信息.

主要成果:

  • 通过模拟和实验证明了拟议方法的有效性.
  • 使用环形照明实现了较高的对比度和较低的扭曲成像,而不是盘形照明.
  • 从一次性测量中成功恢复了相位信息.

结论:

  • 拟议的单拍差异相位对比显微镜在成像效率方面取得了重大进展.
  • 这种技术有可能在体外活细胞样本的动态成像.
  • 该方法为未染色和透明的生物标本提供了卓越的成像质量.