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相关概念视频

Imaging Biological Samples with Optical Microscopy01:18

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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.
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
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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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用于通过随机介质进行通道数字全息显微镜的功能集成波导照明器.

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    此摘要是机器生成的。

    一种新的光学波导照明器通过随机介质实现了相位移动数字全息显微镜. 这种紧的设备通过消除体积庞大的组件来简化3D成像,在具有挑战性的环境中促进显微镜.

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    科学领域:

    • 光学和光子学 在光学和光子学.
    • 显微镜技术 显微镜技术
    • 全息影像的使用方法.

    背景情况:

    • 数字全息显微镜 (DHM) 是用于3D成像的强大工具.
    • 通过随机介质进行成像,由于光散射存在重大挑战.
    • 传统的DHM设置通常需要重的光学元件,限制了便携性和易用性.

    研究的目的:

    • 设计和制造用于通路数字全息显微镜的紧型光学波导照明器.
    • 通过无复杂光学元件的随机介质实现相位移动DHM.
    • 为了证明3D显微镜成像在异质随机介质中的可行性.

    主要方法:

    • 一个功能集成的光学波导照明器的制造.
    • 产生两个距离很近的点源,并控制相位移.
    • 共同路径相位移转数字全息的实施.
    • 使用双复合随机介质进行实验演示.

    主要成果:

    • 波导照明器成功创建了两个点源,满足了通道条件.
    • 拟议的装置消除了对光束分割器,目标镜头和压电变频器的需求.
    • 通过复杂的随机介质实现了高分辨率的3D显微镜成像.

    结论:

    • 开发的光学波导照明器对通路相位移DHM有效.
    • 这项技术为散射环境中的3D成像提供了简化和紧的解决方案.
    • 该方法对异质样本的先进显微镜分析具有前途.