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相关概念视频

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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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Updated: Jul 11, 2025

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光学非线性使得超高分辨率的多重复合显微镜成为可能.

Lei Ding1,2, Chaohao Chen1,3,4, Xuchen Shan5

  • 1Guangdong Engineering and Technology Research Center for Advanced Nanomaterials, School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan, 523808, China.

Advanced materials (Deerfield Beach, Fla.)
|November 16, 2023
PubMed
概括
此摘要是机器生成的。

研究人员引入光学非线性作为超分辨率多重复合显微镜的新维度. 这种方法使用来自上转化纳米粒子 (UCNPs) 的独特光学指纹,用于在生物学和医学中增强纳米级对象识别.

关键词:
兰他化物 兰他化物多重复杂的多重复杂.不线性是非线性的.超级分辨率的超级分辨率

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科学领域:

  • 纳米技术纳米技术
  • 光学显微镜的使用方法
  • 频谱学是一种光谱学.

背景情况:

  • 传统上,纳米显微镜中的多重复合依赖于有限的维度,如辐射强度,颜色,寿命和极化.
  • 纳米级对象识别对于生物学,医学,防伪和显微镜成像方面的进步至关重要.

研究的目的:

  • 引入光学非线性作为超分辨率多重复合显微镜的新维度.
  • 根据其独特的光学非线性来开发一种强大的成像策略,以区分纳米粒子.

主要方法:

  • 在上转化纳米粒子 (UCNPs) 内的合兰化离子中利用能量转换来产生明显的光学非线性.
  • 采用波束来调节基于光学非线性成像点传播函数 (PSF).
  • 通过结合发射颜色和光学非线性来演示四通道复杂化超高分辨率成像.

主要成果:

  • 实现空间分辨率超过150nm (1/6.5λ).
  • 通过分析PSF变异,成功区分了具有明显光学非线性的UCNP.
  • 启用了使用两个直角维度的多重成像:发射颜色和光学非线性.

结论:

  • 光学非线性为超分辨率显微镜中的多重复合提供了一个新的直角维度.
  • 这种方法显著提高了纳米级对象识别能力.
  • 该技术在生物成像,防伪和高密度数据存储方面具有很大的应用潜力.