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相关概念视频

Atomic Force Microscopy01:08

Atomic Force Microscopy

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Atomic force microscopy (AFM) is a type of scanning probe microscopy that can analyze topographic details of various specimens like ceramics, glass, polymers, and biological samples. AFM offers over 1000 times more resolution than the optical imaging system. Images generated from AFM are three-dimensional surface profiles, offering an advantage over the flat, two-dimensional images from other imaging techniques.
The AFM Probe
The probe is regarded as the heart of any AFM setup and comprises the...
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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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Confocal Fluorescence Microscopy01:16

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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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Overview of Microscopy Techniques01:22

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The early pioneers of microscopy opened a window into the invisible world of microorganisms. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes that leveraged nonvisible light, such as fluorescence microscopy that uses an ultraviolet light source and electron microscopy that uses short-wavelength electron beams. These advances significantly improved magnification, image resolution, and contrast. By comparison, the...
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相关实验视频

Updated: Jun 1, 2025

Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform
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先进的定量相位显微镜通过空间多重复合和元表面实现.

Junxiao Zhou1,2, Ang Li1, Ming Lei1

  • 1Department of Electrical and Computer Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States.

Nano letters
|January 22, 2025
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概括

这项研究介绍了一种快速的,单一拍摄的定量相位成像方法,使用了超表面光学和深度学习. 这种技术提高了生物医学成像的速度和准确性,并提供了实际应用.

关键词:
深度学习是一种深度学习.地表表层的表层.定量阶段信息量化阶段信息运输强度方程 运输强度方程

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相关实验视频

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科学领域:

  • 光学和光子学 在光学和光子学.
  • 生物医学成像技术 生物医学成像技术
  • 计算成像技术的成像

背景情况:

  • 定量光学相位成像在观察生物医学性质的传统方法上具有优势.
  • 传统的相位检索需要多次测量和复杂的计算,限制速度和实用性.
  • 超表面光学为简化和加速相位成像提供了机会.

研究的目的:

  • 为提高测量速度,开发一种一次性定量相位成像方法.
  • 整合超表面光学与深度学习和传输强度方程,以提高性能.
  • 在各种相物体和生物标本上证明拟议方法的有效性.

主要方法:

  • 一个新的单次射击定量相位成像系统是使用地表光学设计的.
  • 深度学习算法与阶段检索的强度传输方程相结合.
  • 该系统在校准相位物体和生物样本上进行了测试.

主要成果:

  • 集成系统以低至5%的误差实现了相位检索.
  • 该方法表明,与传统技术相比,空间带宽产品增加了.
  • 在无生命物体和生物样本上进行了成功的相位检索.

结论:

  • 拟议的一次性定量相位成像方法提供了一个紧而快速的解决方案.
  • 超表面光学和深度学习的整合显著提高了测量速度和准确性.
  • 这种技术有可能用于生物医学成像中的各种商业应用.