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相关概念视频

Overview of Microscopy Techniques01:22

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The early pioneers of microscopy opened a window into the invisible world of microorganisms. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes that leveraged nonvisible light, such as fluorescence microscopy that uses an ultraviolet light source and electron microscopy that uses short-wavelength electron beams. These advances significantly improved magnification, image resolution, and contrast. By comparison, the...
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Atomic Force Microscopy01:08

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Atomic force microscopy (AFM) is a type of scanning probe microscopy that can analyze topographic details of various specimens like ceramics, glass, polymers, and biological samples. AFM offers over 1000 times more resolution than the optical imaging system. Images generated from AFM are three-dimensional surface profiles, offering an advantage over the flat, two-dimensional images from other imaging techniques.
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Updated: Jul 16, 2025

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station
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基于无周期光学相位阵列的复合扫描机制.

Kunyang Du, Rui Wang, Jin Guo

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    此摘要是机器生成的。

    使用无周期光学相位阵列 (OPA) 的新型复合扫描机制提供了自适应式两阶段扫描. 这种方法可以实现高速多目标检测和高分辨率区域扫描,优化OPA性能.

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    相关实验视频

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    科学领域:

    • 光学和光子学 在光学和光子学.
    • 阵列信号处理 阵列信号处理

    背景情况:

    • 光学相位阵列 (OPA) 对于光束方向和目标检测至关重要.
    • 现有的OPA系统在平衡扫描速度,多目标能力和高分辨率成像方面面临挑战.
    • 格子叶片可以降低分相阵列系统的性能.

    研究的目的:

    • 为无周期光学相位阵列提出一个复合扫描机制.
    • 引入一个双阶段扫描模式,将分孔多射线和单射线高分辨率扫描相结合.
    • 为了优化阵列分布,减少格子叶片和提高OPA的实际应用性.

    主要方法:

    • 基于无周期光学相位阵列的复合扫描机制的开发.
    • 实施两阶段扫描模式:分光圈多射线用于广泛覆盖,单射线用于高分辨率.
    • 使用基于自适应的参考点的多目标进化算法,优化阶段式数组元素分布.

    主要成果:

    • 拟议的OPA实现了多束和高分辨率扫描模式之间的自适应切换.
    • 该系统保留了高速,多目标检测功能,同时允许集中高分辨率扫描.
    • 阵列分布的优化有效地减少了格子叶片效应.

    结论:

    • 复合扫描机制为OPA应用提供了灵活和高效的方法.
    • 适应式双阶段扫描模式可在各种环境条件下提高性能.
    • 这项研究为光学相位阵列的实际实施和发展提供了宝贵的见解.