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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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Super-resolution Fluorescence Microscopy01:37

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Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been...
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相关实验视频

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Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
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通过向前多重散射样本进行单射数码光学光相结合.

Tengfei Wu1, Yixuan Zhang1, Baptiste Blochet1

  • 1Saints-Pères Paris Institute for the Neurosciences, CNRS UMR 8003, Université Paris Cité, 45 rue des Saints-Pères, Paris 75006, France.

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概括

数字光学相联 (DOPC) 克服了通过使用光导向恒星通过分散生物组织聚焦光的挑战. 这项研究展示了一种新的无参考方法,通过数字光相结合进行深度激光聚焦.

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相关实验视频

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科学领域:

  • 生物光子学 生物光子学
  • 光学成像技术的使用.
  • 激光物理学的激光物理学

背景情况:

  • 生物组织散射光线,产生复杂的斑点图案,阻碍深度成像.
  • 数字光学相联 (DOPC) 提供了一种通过散射介质聚焦光的解决方案.
  • 传统的DOPC面临着光导向星的局限性,原因是光子数量低,光谱带宽,斯托克斯转移和缺乏参考束.

研究的目的:

  • 通过使用光导星,通过多重散射生物样本聚焦激光束的新方法进行演示.
  • 克服传统DOPC在分散生物组织方面的局限性.

主要方法:

  • 使用无参考,高分辨率的波面传感器在一次采集中测量斑点场.
  • 采用数字光相结合 (DFPC),利用前向多重散射样本的宽光谱带宽.
  • 将激光束聚焦在激发波长上,同时测量光珠的宽带斑点场.

主要成果:

  • 通过使用开发的DFPC技术,通过多重散射样本成功聚焦激光束.
  • 证明了用于与光源相结合的无参考波面传感的可行性.
  • 在DOPC中克服了与光导向星相关的关键挑战.

结论:

  • 开发的数字光相结合方法可以通过分散生物组织进行有效的深度激光聚焦.
  • 这种技术为生物成像应用中的光学聚焦提供了有希望的进步,在生物成像应用中使用光导向星.