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相关概念视频

Confocal Fluorescence Microscopy01:16

Confocal Fluorescence Microscopy

13.4K
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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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: Jul 14, 2025

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
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Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

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在3D体积中同时形成多个复杂的光结构,使用单个二进制相位面罩.

Amit Kumar1, Sarvesh Thakur1, S K Biswas2

  • 1Bio-NanoPhotonics Laboratory, Department of Physical Sciences, Indian Institute of Science Education and Research-Mohali, Knowledge City, Sector 81, SAS Nagar, Manauli, PO, 140306, India.

Scientific reports
|October 7, 2023
PubMed
概括
此摘要是机器生成的。

这项研究介绍了一种具有成本效益的代波面塑造系统,使用遗传算法和R平方度量. 它成功地通过像生物组织这样的模糊介质构建了高分辨率的3D复杂结构.

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High-resolution, High-speed, Three-dimensional Video Imaging with Digital Fringe Projection Techniques
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High-resolution, High-speed, Three-dimensional Video Imaging with Digital Fringe Projection Techniques

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Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform
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Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform

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相关实验视频

Last Updated: Jul 14, 2025

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
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High-resolution, High-speed, Three-dimensional Video Imaging with Digital Fringe Projection Techniques
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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
  • 计算物理 计算物理

背景情况:

  • 在的介质中,复杂结构的形成受到光散射和折射率不均的阻碍.
  • 现有的波造型方法往往面临着分辨率和结构统一性的局限性.
  • 斑点噪声的形成进一步复杂化了通过散射材料的成像和操纵.

研究的目的:

  • 开发一个具有成本效益的代波面塑造系统,用于在杂的介质中高分辨率的复杂结构形成.
  • 通过将数据回归模型与R平方度量作为遗传算法适应性函数相结合来增强分辨率和结构统一性.
  • 用生物组织和扩散器验证系统的性能.

主要方法:

  • 将数据回归模型与R平方度量作为遗传算法的适应性函数相结合.
  • 设计一个具有成本效益的代波面造型系统,利用二进制相模.
  • 使用基于铁电液晶 (FLC) 的二相空间光调制器 (SLM).
  • 通过基因算法辅助的R平方分析优化二进制相位面罩.

主要成果:

  • 该系统成功地在3D体积中同时构建了高分辨率的多重复杂异构结构.
  • 验证是使用120-grit磨砂玻璃扩散器和新鲜的肉组织 (厚度为307微米和812微米) 实现的.
  • 优化的单相面具证明了通过散射介质有效控制光线传播.

结论:

  • 提出的具有成本效益的波造型系统,增强了数据回归模型和R平方适应性函数,可以在的介质中形成高分辨率的3D结构.
  • 与遗传算法优化的代二进制相调节为复杂的成像和操纵任务提供了可行的解决方案.
  • 这种方法为需要通过散射环境精确控制光线的应用提供了一种实用且负担得起的方法.