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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: Jun 14, 2025

Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms
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基于SLM的三向数字剪切图,使用类似蜂巢的图案.

Yanfeng Yao, Yonghong Wang, Zhuoyan Wang

    Optics letters
    |August 29, 2024
    PubMed
    概括

    空间光调制器 (SLM) 中的一种新型蜂形图案使多方向数字剪切图成为可能. 这种方法避免了分辨率损失,允许在一次曝光中同时获得各种剪切方向的高质量相位图.

    科学领域:

    • 光学计量学 在光学计量学
    • 数字成像技术的数字成像.
    • 材料科学 材料科学 材料科学

    背景情况:

    • 数字剪切图通常使用空间光调制器 (SLM) 来进行测量.
    • 以前用于多方向剪裁的SLM方法遭受了分辨率损失.
    • 传统SLM中的单个像素只能调节特定的剪切方向.

    研究的目的:

    • 为了研究SLM中类似蜂的调制模式,用于多方向同步数字剪切.
    • 为了克服现有的剪切图技术中的分辨率损失问题.
    • 为了同时获取不同剪切方向的相位图.

    主要方法:

    • 使用空间光调制器 (SLM) 采用类似蜂的调制模式.
    • 实现了多方向同步数字剪切图.
    • 分析了蜂图案中单个像素对剪切量调节的情况.

    主要成果:

    • 证明了数字剪裁图像的蜂状图案的可行性.
    • 通过单个像素实现了不同方向的剪切量调制.
    • 同时获得多个剪切方向的高质量相位图.
    • 通过一次曝光获得的数据,提高了效率.

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    结论:

    • 蜂式调制模式对多方向同步数字剪裁效果很好.
    • 这种方法成功地避免了与单向调制相关的分辨率损失.
    • 同时获取不同剪切方向的相位图,可以提高效率.