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相关概念视频

Phase Contrast and Differential Interference Contrast Microscopy01:26

Phase Contrast and Differential Interference Contrast Microscopy

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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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顺序定时全光学映射摄影与定量相位成像能力.

Zhongxing Li, Long Xiao, Zonghao Feng

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    此摘要是机器生成的。

    我们将衍射相位显微镜 (DPM) 与STAMP相结合,使得超快速的,一次性定量相位成像成为可能. 这种强大的新方法可以实现每秒数万亿,用于观察动态事件.

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    Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
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    科学领域:

    • 光学和光子学 在光学和光子学.
    • 高速成像 - - 高速成像
    • 定量阶段成像技术 定量阶段成像技术

    背景情况:

    • 顺序定时全光学映射摄影 (STAMP) 对于观察动态事件非常有价值.
    • STAMP的一个主要局限性是它无法捕获定量阶段图像.
    • 这限制了其在分析透明材料中的应用.

    研究的目的:

    • 将衍射相位显微镜 (DPM) 与STAMP集成在一起.
    • 为了实现超快的,一次性定量相位成像.
    • 为了克服传统STAMP的局限性.

    主要方法:

    • 开发了一个混合系统,将DPM和STAMP结合起来.
    • 实现了高达3.3万亿/秒 (fps) 的创纪录的率.
    • 使用定制构建的相模块进行系统校准和评估.

    主要成果:

    • 在前所未有的速度上成功演示了单次射击定量相位成像.
    • 精确地捕捉到激光线丝在空气中的动态传播.
    • 验证了系统对高分辨率,高速相位测量的能力.

    结论:

    • DPM和STAMP的整合为超快速成像提供了一个强大的新工具.
    • 这种方法显著提高了STAMP测量高度透明目标的能力.
    • 通过定量阶段信息,为研究瞬态光学现象开辟了新的途径.