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相关概念视频

Phase Contrast and Differential Interference Contrast Microscopy01:26

Phase Contrast and Differential Interference Contrast Microscopy

Phase-Contrast Microscopes
In-phase-contrast microscopes, interference between light directly passing through a cell and light refracted by cellular components is used to create high-contrast, high-resolution images without staining. It is the oldest and simplest type of microscope that creates an image by altering the wavelengths of light rays passing through the specimen. Altered wavelength paths are created using an annular stop in the condenser. The annular stop produces a hollow cone of...
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,...

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相关实验视频

Updated: Jul 3, 2026

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
12:19

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基于干扰仪的紧型4 × 4多模式光学开关单元,具有热交叉干扰缓解功能.

Tun-Yao Hung, Chi-Wai Chow

    Optics express
    |November 11, 2025
    PubMed
    概括

    这项研究介绍了一种使用多模式干扰仪的紧型光子学开关,通过热弹性优化的遗传算法进行了优化. 优化的交换机实现了超过80 Gbit/s的数据速率,这对于AI和光学计算应用至关重要.

    科学领域:

    • 光学和光学工程的光学和光学工程.
    • 集成光学 集成光学
    • 光子学设备的设备.

    背景情况:

    • 光子 (SiPh) 开关对于高速数据通信和计算至关重要.
    • 基于多模式干扰仪 (MMI) 的开关中的热交叉声可以降低性能.
    • 需要优化技术来提高SiPh开关的稳定性和效率.

    研究的目的:

    • 为了开发一个紧的4x4基于MMI的SiPh开关单元,提高了热交叉声响的弹性.
    • 为了利用基因算法 (GA) 优化用于相位变速器偏差条件.
    • 为了证明拟议的转换对高速数据传输和大规模集成的可行性.

    主要方法:

    • 一个紧的4x4基于MMI的SiPh开关的设计和制造.
    • 应用遗传算法 (GA) 优化来确定相变器的最佳偏差条件.
    • 交换机性能的实验性表征,包括灭绝率 (ER) 和数据速率.
    • 对校准的操作偏差电压进行长期稳定性测试.

    主要成果:

    • 实现了显著的灭绝比 (ER) 改进>17.5dB的GA后优化.
    • 经过超过三个星期的稳定操作偏差电压证明.

    更多相关视频

    A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
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    Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station
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    相关实验视频

    Last Updated: Jul 3, 2026

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    A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
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    A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

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    Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station
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  • 支持的数据速率超过每通道80 Gbit/s,使用直角频率分割复杂化 (OFDM),达到HD-FEC值.
  • 在较大的MMI光学开关中应用的概念验证.

    • 结论:

    • 拟议的基于GA优化的MMI的SiPh开关提供了强大的热交叉声弹性.
    • 紧的设计和高性能适合大规模的SiPh开关实现.
    • 这项技术对光学神经网络和人工智能 (AI) 等先进应用具有前景.