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相关概念视频

Biasing of Metal-Semiconductor Junctions01:27

Biasing of Metal-Semiconductor Junctions

260
Biasing metal-semiconductor junctions involves applying a voltage across the junction. Specifically, the metal is connected to a voltage source, while the semiconductor is grounded. This technique is essential for controlling the direction and magnitude of current flow in electronic devices, including diodes, transistors, and photovoltaic cells.
In Schottky junctions, where the semiconductor is n-type, applying a positive voltage to the metal relative to the semiconductor reduces its Fermi...
260
MOSFET: Enhancement Mode01:22

MOSFET: Enhancement Mode

346
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...
346

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相关实验视频

Updated: Jul 8, 2025

Fabrication of Zero Mode Waveguides for High Concentration Single Molecule Microscopy
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Fabrication of Zero Mode Waveguides for High Concentration Single Molecule Microscopy

Published on: May 12, 2020

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在批量CMOS中可见光谱波导.

Debjit Sarkar, Ali Hajimiri

    Optics express
    |December 13, 2023
    PubMed
    概括

    这项研究证明了在标准的CMOS芯片上可见光的波导. 开发的玻璃肋波导实现了在可见波长的未修改散装CMOS中报告的最低损失.

    科学领域:

    • 光子学是指光子学的使用方法.
    • 集成光学 集成光学 集成光学
    • 半导体设备 半导体设备

    背景情况:

    • 标准的CMOS芯片广泛可用,但缺乏有效的可见光波导能力.
    • 目前可见光集成的现有方法往往需要复杂的制造或专门的材料.
    • 未经修改的散装CMOS为集成光子应用提供了一个具有成本效益的平台.

    研究的目的:

    • 在未经修改的CMOS芯片中展示和描述可见光在整个光谱中的波导.
    • 在CMOS中引入修改后的欧勒曲线,以改进波导设计.
    • 在这样一个平台上报告可见波长的最小光学损失.

    主要方法:

    • 使用标准CMOS工艺制造玻璃肋波导.
    • 通过湿蚀刻选择性去除金属层以暴露波导.
    • 整合了修改的欧勒曲线,以增强波导曲线半径.
    • 测量各种可见波长 (450nm至650nm) 的光学损失.

    主要成果:

    • 通过可见光谱成功实现了光的波导.
    • 测定光损耗在450nm时为6.2dB/cm,在650nm时为3.2dB/cm.
    • 修改后的欧勒曲线显著改善了肋骨波导中的曲线半径.

    更多相关视频

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    Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
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    Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

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    Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
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  • 这些结果代表了未经修改的CMOS中可见波长的最低报告损失.

    • 结论:

    • 未经修改的散装CMOS是可见光集成光子学的一个可行的平台.
    • 开发的制造和设计技术使可见光波导效率高.
    • 这一进步为CMOS上具有成本效益的可见光光子集成电路铺平了道路.