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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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Optical microscopy uses optic principles to provide detailed images of samples. Antonie van Leeuwenhoek designed the first compound optical microscope in the 17th century to visualize blood cells, bacteria, and yeast cells. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes with enhanced magnification and resolution.
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Studying Soft-matter and Biological Systems over a Wide Length-scale from Nanometer and Micrometer Sizes at the Small-angle Neutron Diffractometer KWS-2
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用于光学应用的孔径≤1mm的Fraxicon:特性研究研究.

Haoran Mu1, Daniel Smith1, Soon Hock Ng1,2

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研究人员开发了新的微光学元件,使用femtosecond激光写作用于小型化的光源. 这些"碎片"对于需要精确光控制的先进生物医学应用具有前景.

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在 RGB RGB RGB 里面.在 SZ2080TM 抵抗下,抵抗.直接激光写作 直接激光写作弗拉克西康 (Fraxicon) 是一个非常古老的城市.微光学 微光学 微光学

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科学领域:

  • 光学和光子学 在光学和光子学.
  • 生物医学工程 生物医学工程
  • 材料科学 材料科学 材料科学

背景情况:

  • 微型光源需要匹配的微光元件,截面小于1毫米,光学质量高.
  • 在空间上受到限制的生物医学应用,如内镜和光遗传学要求光学元件的维度减少.

研究的目的:

  • 适应弗雷内尔镜头方法用于形镜头 (轴子),创建平面化的轴子 (碎形).
  • 使用直接激光写作制造和光学描述正负分数.
  • 在各种照明条件下以数值模型来模拟fraxicon的性能.

主要方法:

  • 在SZ2080TM聚合物中直接使用秒激光写字 (780 nm/100 fs).
  • 积极和消极分数的制造.
  • 对fraxicon性能进行光学表征和数值建模.

主要成果:

  • 成功地制造了平面化轴形 (碎形) 的横截面小于1毫米.
  • 阳性和阴性分数的光学特征数据.
  • 在不同的照明条件下 (不连贯,延伸,平面波) 进行数值建模结果的比较.

结论:

  • 开发的fraxicon制造方法显示了对要求高的技术应用的前景.
  • 该方法允许在软聚合物和电阻中快速复制.
  • 这些微光元件适用于生物医学中的小型光源应用.