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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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Interference and Diffraction02:18

Interference and Diffraction

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Interference is a characteristic phenomenon exhibited by waves. When two electromagnetic waves interact with their peaks and troughs coinciding, a resulting wave with enhanced amplitude is produced. This is known as constructive interference. In this case, the two waves interacting are in phase with each other.
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相关实验视频

Updated: Jan 8, 2026

Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating
10:39

Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating

Published on: October 11, 2016

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基于光学的相位移动干扰的马赛克网格错误的检测和纠正.

Lingzhi Liu, Lei Xin, Zhongming Yang

    Optics express
    |December 19, 2025
    PubMed
    概括

    这项研究引入了一种新的方法,用于检测和纠正大型马赛克网格中的错误,使用双波长光极化移相干扰. 该技术可实现高分辨率测量,用于精确的格子制造.

    科学领域:

    • 光学和光子学 在光学和光子学.
    • 计量学 计量学 计量学
    • 纳米制造的纳米制造

    背景情况:

    • 马赛克格技术对于制造大尺寸格至关重要.
    • 现有的方法在准确检测和纠正马赛克错误方面面临挑战.
    • 精确的错误检测对于高性能光学系统至关重要.

    研究的目的:

    • 提出一种用于检测和纠正马赛克格子错误的新方法.
    • 开发一个专门用于马赛克错误检测的系统.
    • 验证拟议技术的准确性和分辨率.

    主要方法:

    • 使用双波长光学极化移相干扰.
    • 设计了一个采用光学旋参考束的马赛克错误检测系统.
    • 通过分析干扰边缘模式和应用双波长算法来量化错误,以扩展翻译错误范围.

    主要成果:

    • 对于角度对齐错误 (Δθx 和 Δθy) 的测量分辨率达到了大约 1''.
    • 对于转化对齐误差 (Δz和Δx) 的测量分辨率约为2nm.
    • 实验验证证证实了该方法的高精度,扩大测量范围和强大的稳定性.

    更多相关视频

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

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    Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization
    10:28

    Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization

    Published on: July 5, 2016

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    相关实验视频

    Last Updated: Jan 8, 2026

    Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating
    10:39

    Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating

    Published on: October 11, 2016

    10.1K
    Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
    08:39

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

    Published on: January 28, 2019

    10.3K
    Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization
    10:28

    Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization

    Published on: July 5, 2016

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    结论:

    • 拟议的双波长干扰方法为马赛克网格错误检测和纠正提供了一种新的一般方法.
    • 这种技术提高了大尺寸格子的制造精度.
    • 为光学计量学提供了显著的测量分辨率和范围的改进.