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Confocal Fluorescence Microscopy01:16

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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: Jun 6, 2025

Three-dimensional Optical-resolution Photoacoustic Microscopy
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Three-dimensional Optical-resolution Photoacoustic Microscopy

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基于紧型激光二极管的光声学介视镜 (optoacoustic mesoscopy).

Xiang Liu, Weiye Li, Yu-Hang Liu

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    概括
    此摘要是机器生成的。

    一个新的紧型激光二极管扫描仪提供便携式光声中视镜 (OAM). 该系统实现了与大型固态激光相比较的高质量成像,使得临床应用成为可能.

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    相关实验视频

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    科学领域:

    • 生物医学光学 生物医学光学
    • 医学成像技术 医学成像技术

    背景情况:

    • 固态激光器 (SSL) 是光声成像的标准,但对于便携式设备来说太大了.
    • 紧性对于光声系统的临床转化和商业化至关重要.

    研究的目的:

    • 为了开发一个基于激光二极管 (LD) 的紧型光声学美索斯科皮 (CoLD-OAM) 扫描仪.
    • 为了证明具有高性能的便携式光声成像的可行性.

    主要方法:

    • 使用了一种纤维合激光二极管源,尺寸为46×43×11毫米.
    • 开发了一个具有可调节脉冲宽度 (30-200 ns) 和高脉冲能量 (高达6μJ) 的CoLD-OAM系统.
    • 通过对人类手腕实时成像来评估系统性能.

    主要成果:

    • 实现了极好的脉冲对脉冲能量稳定性 (0.42%).
    • 证明了人类手腕的实时成像,其图像质量与基于SSL的系统相提并论.
    • 紧的LD源使得系统足迹显著减少.

    结论:

    • CoLD-OAM扫描仪代表了便携式光声成像技术的重大进步.
    • 这项技术促进了临床可转换和商业可行的光声系统的开发.
    • 紧型激光二极管源是用于光声学应用的大型SSL的可行替代方案.