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相关概念视频

MOSFET: Enhancement Mode01:22

MOSFET: Enhancement Mode

298
Enhancement-mode MOSFETs are pivotal components in electronics, distinguished by their capacity to act as highly efficient switches. They are part of the larger family of metal-oxide Semiconductor Field-Effect Transistors (MOSFETs). They are available in two types: p-channel and n-channel, each tailored to specific polarity operations.
In their basic form, enhancement-mode MOSFETs are typically non-conductive when the gate-source voltage (Vgs) is zero. This default 'off' state means no...
298

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相关实验视频

Updated: Jun 10, 2025

Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms
08:48

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对于可见光子集成电路的模式分割复杂化.

Priyansh Shah, Elias Ben Mellouk, Jeremy Levine

    Optics letters
    |October 15, 2024
    PubMed
    概括

    研究人员在可见光子集成电路 (PIC) 中实现了三种高阶波导模式的模式分割复合. 这一突破使量子光子学和成像的紧光学接口成为可能,克服了以往在较短波长的制造挑战.

    科学领域:

    • 光子学和集成光学技术.
    • 量子技术 量子技术 量子技术
    • 生物医学光学 生物医学光学

    背景情况:

    • 可见波长光子集成电路 (PIC) 对于量子光子学,高分辨率成像,光遗传学和便携式显示器等先进应用是必不可少的.
    • 这些应用需要芯片上的波面结构和密集的光学路由,这些功能可以通过波导横向空间模式实现.
    • 在较短波长的制造挑战历来限制了可见PIC中这些模式的激发和控制.

    研究的目的:

    • 为了证明在可见波长的三个更高阶波导模式的模式划分复杂化.
    • 在创建复杂可见的PIC时克服制造限制.
    • 通过先进的模式操纵,为量子位和细胞实现紧的光学接口.

    主要方法:

    • 采用了用于模式操纵的亚亚巴特线性渐变的非对称定向合器.
    • 在可见波长上运行,具体来说是473nm.
    • 具有多重波导模式之间的交叉声音的特征.

    主要成果:

    • 成功演示了在可见波长和低交叉声波的可见波长中对三种更高阶波导模式的模式分割复杂化.
    • 开发的合器具有超过100 nm的理论带宽.
    • 显示了对宽度变化超过45 nm的制造容忍度.

    更多相关视频

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    相关实验视频

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    结论:

    • 这项工作代表了对可见波长的三种更高阶波导模式的模式划分复合的首次演示.
    • 证明的技术和制造耐受性为在红色,蓝色和绿色频谱中运行的大型可见PIC铺平了道路.
    • 允许未来集成到紧的光学系统中,用于各种科学和技术应用.