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相关概念视频

Confocal Fluorescence Microscopy01:16

Confocal Fluorescence Microscopy

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Confocal microscopy is an advanced microscopic technique. The prime advantage of the confocal microscope over other microscopy techniques is its ability to block the out-of-focus light from the illuminated samples using pinholes. It is widely used with fluorescence optics to obtain high-resolution, sharp contrast images. Unlike optical microscopes, confocal microscopes use a focused beam of light laser to scan the entire sample surface at different z-planes. These microscopes are, therefore,...
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Single Molecule Fluorescence Microscopy on Planar Supported Bilayers
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用单层金属传感器进行单射确定性复杂振幅成像.

Liu Li1, Shuai Wang1, Feng Zhao1

  • 1State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instrument, Tsinghua University, Beijing 100084, China.

Science advances
|January 5, 2024
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概括

本研究介绍了一种用于复杂振幅成像的紧系统,可以恢复丢失的相位信息. 这种新的方法使用单一的金属和极化摄像头,用于单次拍摄,对各种物体进行无斑点的成像.

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Lensfree On-chip Tomographic Microscopy Employing Multi-angle Illumination and Pixel Super-resolution
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科学领域:

  • 光学和光子学 在光学和光子学.
  • 图像重建 图像的重建
  • 计量学 计量学 计量学

背景情况:

  • 传统的成像只捕捉光强度,忽略了关键的相位信息.
  • 现有的阶段检索方法通常涉及重的设置,多次测量,或需要先前的场景知识.
  • 阶段信息对于无标签显微镜和光学计量学等应用至关重要.

研究的目的:

  • 为复杂的振幅成像开发一个紧而高效的系统.
  • 为了克服现有的阶段检索技术的局限性.
  • 为了使相位信息可以在没有事先知识的情况下一次性恢复.

主要方法:

  • 使用单层金属来产生空间复杂化和极化相位移点扩散函数.
  • 整合了金属与偏振摄像头,同时记录四个偏振剪切干扰模式.
  • 采用不连贯的发光二极管用于照明,使得无斑点无噪声的成像.

主要成果:

  • 展示了复杂的振幅光场在单一镜头中的确定性重建.
  • 实现了静态和移动物体的无斑点噪声复杂振幅成像.
  • 展示了量身定制的放大比率和视野能力.

结论:

  • 拟议的小型化和强大的系统使复杂的振幅成像具有更低的复杂性.
  • 这项技术有可能集成到便携式设备中,用于点护理应用.
  • 一次性,无标签的成像能力推动了光学计量学和显微镜的发展.