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相关概念视频

Confocal Fluorescence Microscopy01:16

Confocal Fluorescence Microscopy

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Confocal microscopy is an advanced microscopic technique. The prime advantage of the confocal microscope over other microscopy techniques is its ability to block the out-of-focus light from the illuminated samples using pinholes. It is widely used with fluorescence optics to obtain high-resolution, sharp contrast images. Unlike optical microscopes, confocal microscopes use a focused beam of light laser to scan the entire sample surface at different z-planes. These microscopes are, therefore,...
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相关实验视频

Updated: Jul 22, 2025

A Protocol for Real-time 3D Single Particle Tracking
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A Protocol for Real-time 3D Single Particle Tracking

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高精度3D成像与时间校正单光子LiDAR.

Cheng Zhang, Yupeng Wang, Yongkai Yin

    Optics express
    |July 21, 2023
    PubMed
    概括

    这项研究引入了一种双单光子雪崩二极管 (SPAD) LiDAR系统,以消除由激光脉冲能量波动引起的距离误差. 该新系统使用参考光学路径进行精确的3D成像和高精度距离测量.

    科学领域:

    • 光子学 是一个光子学.
    • 光学工程是指光学工程.
    • 3D成像技术 3D成像技术

    背景情况:

    • 单光子光探测和测距 (LiDAR) 对于高精度的3D成像至关重要.
    • 现有的LiDAR系统因激光脉冲能量波动影响定时同步而遭受距离错误.

    研究的目的:

    • 开发一个双SPADs LiDAR系统,纠正由波动激光脉冲能量引起的距离误差.
    • 通过减轻固有的系统限制,实现高精度测距和3D成像.

    主要方法:

    • 实施一个双单光子雪崩二极管 (SPAD) LiDAR系统.
    • 整合了一个参考光学路径,以使用参考光子纠正信号光子飞行时间.
    • 对系统性能进行实验验证.

    主要成果:

    • 拟议的LiDAR系统有效地纠正来自激光脉冲能量变化的距离误差.
    • 在29米的距离上,实现了0.15mm的距离误差和0.3mm的距离分辨率.
    • 证明了高精度测距和3D成像的能力.

    结论:

    • 带有参考光学路径的双SPADs LiDAR系统成功克服了距离错误.

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    Determining 3D Flow Fields via Multi-camera Light Field Imaging
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  • 这项技术可以在具有挑战性的条件下实现精确的3D成像和精确的距离测量.
  • 该系统为需要高保真度LiDAR性能的应用提供了显著的进步.