相关实验视频

Updated: Jun 16, 2025

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
05:39

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

9.6K

基于Sb2Se3相变材料和反向设计的可重新配置模式转换器

Shengru Zhou, Hansi Ma, Zhaojian Zhang

    Optics express
    |June 14, 2025
    PubMed
    概括

    这项研究介绍了一种用于芯片模式转换器的新-抗化混合平台. 这些设备使灵活的模式切换和功率控制成为可能,为集成光子电路推进光学信号处理.

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    High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal06:24

    High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal

    Published on: October 31, 2019

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    In Situ Transmission Electron Microscopy with Biasing and Fabrication of Asymmetric Crossbars Based on Mixed-Phased a-VOx09:49

    In Situ Transmission Electron Microscopy with Biasing and Fabrication of Asymmetric Crossbars Based on Mixed-Phased a-VOx

    Published on: May 13, 2020

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    相关概念视频

    Design Example: Capacitance Multiplier Circuit01:20

    Design Example: Capacitance Multiplier Circuit

    In integrated circuit technology, a capacitance multiplier is often utilized to produce a larger capacitance value when a small physical capacitance falls short. This is achieved by a circuit that multiplies capacitance values by a factor of up to 1000, such that a 10-pF capacitor can replicate the performance of a 100-nF capacitor.
    The circuit illustrated in Figure 1 below incorporates two op-amps, with the first operating as a voltage follower and the second acting as an inverting amplifier.
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    MOSFET: Enhancement Mode01:22

    MOSFET: Enhancement Mode

    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...
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    Source Transformation for AC Circuits01:11

    Source Transformation for AC Circuits

    The process of source transformation in the frequency domain entails the conversion of a voltage source, positioned in series with an impedance, into a current source that is parallel to an impedance, or the other way around. It is essential to maintain the following relationships while transitioning from one source type to another.
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    Phase-lead and Phase-lag Controllers01:22

    Phase-lead and Phase-lag Controllers

    Understanding the working function of different types of controllers can be illustrated with practical analogies, such as adjusting a stereo's volume equalizer. Cranking up the bass involves a phase-lead controller, which functions as a high-pass filter, while increasing the treble uses a phase-lag controller, which acts as a low-pass filter. PD controllers, similar to high-pass filters, enhance the system's response to high-frequency components. PI controllers, akin to low-pass...
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    PD Controller: Design01:26

    PD Controller: Design

    In automotive engineering, car suspension systems often employ Proportional Derivative (PD) controllers to enhance performance. PD controllers are utilized to adjust the damping force in response to road conditions. A controller, acting as an amplifier with a constant gain, demonstrates proportional control, with output directly mirroring input.
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    Biasing of Metal-Semiconductor Junctions01:27

    Biasing of Metal-Semiconductor Junctions

    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...
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