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相关概念视频

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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Interference: Path Lengths01:10

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Consider two sources of sound, that may or may not be in phase, emitting waves at a single frequency, and consider the frequencies to be the same.
Two special sources may be considered when they are in phase. This can be easily achieved by feeding the two sources from the same source. An example would be synchronizing the two speakers by feeding them with the same source, such as the sound waves produced by a tuning fork. This setup ensures that the two sources have the same frequency and are...
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相关实验视频

Updated: Jul 12, 2025

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
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极化白光干涉测量用于使用两个同时干涉图进行相位测量.

Jose-Rubén Sánchez-Aguilar, Ana Karen Reyes, Luis García-Lechuga

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    |October 19, 2023
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    此摘要是机器生成的。

    这项研究介绍了一种新型的极化相移白光干扰度系统 (PPS-WLIS),用于测量透明物体的斜率. 该系统简化了相位移干扰计,使单次捕获动态事件分析成为可能.

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    相关实验视频

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    科学领域:

    • 光学物理学的光学物理学
    • 计量学 计量学 计量学
    • 干涉测量是干涉测量的方法.

    背景情况:

    • 阶段转移干扰测量对于精确的光学测量至关重要.
    • 传统的方法可能很复杂,需要多次捕获.
    • 测量透明物体的斜率相具有独特的挑战.

    研究的目的:

    • 设计和演示一个极化相位移白光干扰度系统 (PPS-WLIS).
    • 为了使透明物体的斜率相的传输模式测量.
    • 为了简化相位移干扰计,用于动态事件分析.

    主要方法:

    • 连接一个循环路径干扰仪与多重复的迈克尔森干扰仪.
    • 利用极化生成两个同时调制的并行干涉图.
    • 采用两步相变调算法,而不需要精确的相位移.

    主要成果:

    • 成功观察了与光学相变相关的物体变化.
    • 简化,单次捕获的相位移干涉测量过程的演示.
    • 作为一个应用程序,精确测量火焰部分的温度.

    结论:

    • 开发的PPS-WLIS提供了一种简单有效的方法来测量斜率相位.
    • 该系统的单次捕获能力使其非常适合动态光学事件分析.
    • 这种技术推进了透明的物体计量学和实时光学分析.