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相关概念视频

X-ray Imaging01:24

X-ray Imaging

5.4K
German physicist Wilhelm Röntgen (1845–1923) was experimenting with electrical current when he discovered that a mysterious and invisible "ray" would pass through his flesh but leave an outline of his bones on a screen coated with a metal compound. In 1895, Röntgen made the first durable record of the internal parts of a living human: an "X-ray" image (as it came to be called) of his wife’s hand. Scientists worldwide quickly began their own experiments with...
5.4K

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相关实验视频

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Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization
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离轴全息成像使用未检测到的光线成像.

Josué R León-Torres, Filip Krajinić, Mohit Kumar

    Optics express
    |June 14, 2025
    PubMed
    概括

    使用未检测光的量子成像 (QIUL) 使用量子相关性来检索异国情调波长的物体细节. 这种新的技术在一次拍摄中重建振幅和相位,为多方法提供了替代方案.

    科学领域:

    • 量子光学就是一个量子光学.
    • 光子学 是一个光子学.
    • 图像重建 图像重建

    背景情况:

    • 使用未检测光 (QIUL) 的量子成像利用自发参数向下转换 (SPDC) 的量子相关性.
    • QIUL允许在不同波长的照明和检测,使用可见光谱探测器探测异国情调的波长物体.

    研究的目的:

    • 通过实验来证明一个QIUL技术.
    • 在单一镜头中重建一个物体的振幅和相位信息.

    主要方法:

    • 纳入了富里埃离轴全息的方法.
    • 使用混合型诱导相干非线性干扰仪.
    • 采用广场配置,用于一次性采集.

    主要成果:

    • 成功重建对象的振幅和相位信息.
    • 一次射击,广场QIUL技术的演示.
    • 验证是多采集方法的可行替代品,例如相位移转全息.

    结论:

    • 经过证明的QIUL技术提供了高效的振幅和相位检索.
    • 这种单一拍摄,广场方法简化了复杂的成像场景.

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  • QIUL为先进的光学成像应用提供了一个有前途的替代方案.