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Phase Contrast and Differential Interference Contrast Microscopy01:26

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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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    科学领域:

    • 光学和光子学 在光学和光子学.
    • 图像处理 图像处理
    • 定量成像技术 定量成像技术

    背景情况:

    • 幽灵全息可以在定量成像中复杂的现场恢复.
    • 幽灵成像框架中的数字全息面临着空间带宽或时间带宽限制.

    研究的目的:

    • 提出和展示一个定量化幽灵相成像方法.
    • 为了克服幽灵成像技术中的带宽限制.

    主要方法:

    • 使用全息幽灵衍射方案与相位移相相结合.
    • 采用离轴全息系统,叠加幽灵衍射场与参考随机场.
    • 包含一个空间光调节器,用于快速时间相位转移,以增强有效的带宽.

    主要成果:

    • 成功展示了突然和连续相样本的定量相位成像.
    • 通过抑制冗余项来提高频率域中的有效带宽.
    • 验证了拟议的定量幽灵相成像技术的适用性.

    结论:

    • 开发的方法有效地解决了幽灵成像中的带宽限制.
    • 能够实现先进的定量阶段成像应用.
    • 在各种成像场景中提供复杂的现场恢复的强大方法.