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相关概念视频

Total Internal Reflection Fluorescence Microscopy01:05

Total Internal Reflection Fluorescence Microscopy

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Total internal reflection fluorescence microscopy or TIRF is an advanced microscopic technique used to visualize fluorophores in samples close to a solid surface with a higher refractive index, such as a glass coverslip. TIRF only allows fluorophores in proximity to the solid surface to be excited. When light from a medium with a lower refractive index (such as air) hits the glass coverslip at a critical angle, the light undergoes total internal reflection stead of passing through the glass.
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相关实验视频

Updated: Jan 9, 2026

Author Spotlight: Unveiling the Potential of VSFG Microscopy in Studying Mesoscopically Heterogeneous Self-Assembled Structures
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单一拍摄的高光谱波面成像.

Baptiste Blochet1, Nathalie Lebas2, Pascal Berto3,4,5

  • 1Université Paris Cité, CNRS, Saints-Pères Paris Institute for the Neurosciences, Paris, France. baptiste.blochet@u-paris.fr.

Nature communications
|December 4, 2025
PubMed
概括
此摘要是机器生成的。

这项研究引入了一种使用多核光纤的新型高光谱波浪前线传感技术. 该方法可以在宽带照明下进行精确的波面测量,这对于先进的激光和成像应用至关重要.

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Hyperspectral Imaging as a Tool to Study Optical Anisotropy in Lanthanide-Based Molecular Single Crystals
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Excitation-Scanning Hyperspectral Imaging Microscopy to Efficiently Discriminate Fluorescence Signals
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科学领域:

  • 光学和光子学 在光学和光子学.
  • 激光科学 激光科学
  • 计量学 计量学 计量学

背景情况:

  • 传统的波传感器由于无色波假设而在宽带照明中失败.
  • 超光谱波面传感对于空间光谱合计学和快速物质分散成像至关重要.

研究的目的:

  • 开发适用于宽带照明的单射超光谱波面传感方案.
  • 为了克服传统波浪前传感器在非色彩场景中的局限性.

主要方法:

  • 利用了哈特曼波线传感原理,使用多核纤维作为哈特曼面具.
  • 利用多核纤维的角度记忆效应和光谱相关性质.
  • 将编码的波面梯度转化为空间位移,并将光谱信息转化为斑点图案.

主要成果:

  • 从单脉冲采集成功演示了超光谱波面立方体记录.
  • 实现了分散相位物体的多光谱显微镜成像.
  • 该系统提供了空间分辨率和光谱分辨率之间的调节性权衡.

结论:

  • 提出的超光谱波面传感方法是有效的,并保留了传统传感器的简单性.
  • 该技术适用于高功率激光设备和先进的成像应用.
  • 这种方法为宽带波浪表征提供了一个强大的解决方案.