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相关概念视频

Confocal Fluorescence Microscopy01:16

Confocal Fluorescence Microscopy

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,...
Super-resolution Fluorescence Microscopy01:37

Super-resolution Fluorescence Microscopy

Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been developed.

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相关实验视频

Updated: May 8, 2026

Writing Bragg Gratings in Multicore Fibers
08:48

Writing Bragg Gratings in Multicore Fibers

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高效的多点光束生成与一个全纤维SMF-SCF结构.

Yongmin Jung, Natasha Vukovic, Christophe A Codemard

    Optics express
    |June 14, 2025
    PubMed
    概括
    此摘要是机器生成的。

    我们开发了一种高效的基于光纤的方法,使用单模光纤 (SMF) 和方核光纤 (SCF) 来创建多点光束图案. 这种技术提高了激光处理效率,并有可能用于光子学和制造应用.

    更多相关视频

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    Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
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    科学领域:

    • 光学和光子学 在光学和光子学.
    • 材料科学 材料科学 材料科学

    背景情况:

    • 在需要并行处理的应用中,生成多点激光束至关重要.
    • 创建多点光束模式的现有方法可能是复杂的或低效的.

    研究的目的:

    • 提出一种高效的,完全基于光纤的方法,用于生成多点光束图案.
    • 为了证明这种技术在激光制造中的可扩展性和适用性.

    主要方法:

    • 使用单模光纤 (SMF) 和正方形核心光纤 (SCF) 结构.
    • 在SCF中利用多模式干扰来创建可配置的方格格子束图案 (2x2,3x3,4x4数组).
    • 调整SCF长度以控制光束模式配置.

    主要成果:

    • 通过模拟和实验在1060nm波长验证了方法.
    • 实现了高功率均性,最小的光学损失,以及在不同的光束配置中卓越的稳定性.
    • 在金属表面的初始多点激光钻探测试中证明了提高加工效率.

    结论:

    • 拟议的SMF-SCF结构为生成多点光束图案提供了一种高效和稳定的方法.
    • 这种技术为光子学,激光制造和生物医学成像中的可扩展,紧和高精度应用提供了巨大的潜力.
    • 增加光束点数的能力可以大大提高相关应用中的处理效率.