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相关概念视频

Group Polarization01:01

Group Polarization

38.4K
Group polarization is the strengthening of an original group attitude following the discussion of views within a group (Teger & Pruitt, 1967). That is, if a group initially favors a viewpoint, after discussion the group consensus is likely a stronger endorsement of the viewpoint. Conversely, if the group was initially opposed to a viewpoint, group discussion would likely lead to stronger opposition.
38.4K
Phase Contrast and Differential Interference Contrast Microscopy01:26

Phase Contrast and Differential Interference Contrast Microscopy

12.0K
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...
12.0K
Color Vision01:24

Color Vision

1.3K
Color perception begins in the retina, the light-sensitive layer at the back of the eye. Two main theories explain how colors are seen: the trichromatic theory and the opponent-process theory. The trichromatic theory, proposed by Thomas Young in 1802 and extended by Hermann von Helmholtz in 1852, suggests that color vision is based on three types of cone receptors in the retina. These cones are sensitive to different but overlapping ranges of wavelengths corresponding to red, blue, and green.
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相关实验视频

Updated: Jan 11, 2026

An Electrochemical Cholesteric Liquid Crystalline Device for Quick and Low-Voltage Color Modulation
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An Electrochemical Cholesteric Liquid Crystalline Device for Quick and Low-Voltage Color Modulation

Published on: February 27, 2019

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灵活的合规极化敏感的结构色彩光学开关.

Hongyan Yang, Qiming Li, Weijie Chen

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    |November 11, 2025
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    概括
    此摘要是机器生成的。

    这项研究介绍了一种快速的,由人工智能驱动的平台,用于设计极化敏感的颜色开关. 新的双向深度神经网络 (Bi-DNN) 能够为先进的光学显示器快速反向设计元表面.

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    High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal
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    Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets
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    Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets

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    相关实验视频

    Last Updated: Jan 11, 2026

    An Electrochemical Cholesteric Liquid Crystalline Device for Quick and Low-Voltage Color Modulation
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    Published on: February 27, 2019

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

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    Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets
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    Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets

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    科学领域:

    • 光子学和材料科学 材料科学
    • 在光学领域的人工智能.

    背景情况:

    • 传统的超表面结构色彩设计是计算密集的.
    • 现有的光学开关机制缺乏效率和速度.

    研究的目的:

    • 开发一个双向深度神经网络 (Bi-DNN) 平台,用于灵活的反向设计,极化敏感的色彩开关.
    • 与传统模拟相比,大大加快设计过程.

    主要方法:

    • 实现了双向深度神经网络 (Bi-DNN),用于同时预测结构参数和输出颜色.
    • 利用机械应变调整 (-10%至50%) 来控制超表面的光学特性.
    • 用有限差异时间域 (FDTD) 模拟进行比较,验证了性能.

    主要成果:

    • 实现的预测速度比FDTD快3个数量级 (每个样本64ms).
    • 在应变下显示了广泛的颜色范围 (92% sRGB) 具有高精度 (ΔE < 2).
    • 启用偏振可切换色彩显示/隐藏,其灭光率为17.1dB.
    • 证实了角稳定性 (0°-20°发生率).

    结论:

    • 双DNN平台为高性能光学交换机提供了一个新的范式.
    • 为定向色彩元面推进反向设计基础.
    • 介绍了下一代显示器,智能可穿戴设备和光学加密中的应用.