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相关概念视频

Phase Transitions02:31

Phase Transitions

Whether solid, liquid, or gas, a substance's state depends on the order and arrangement of its particles (atoms, molecules, or ions). Particles in the solid pack closely together, generally in a pattern. The particles vibrate about their fixed positions but do not move or squeeze past their neighbors. In liquids, although the particles are closely spaced, they are randomly arranged. The position of the particles are not fixed—that is, they are free to move past their neighbors to occupy...
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...

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相关实验视频

Updated: Jun 30, 2026

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
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Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

Published on: January 28, 2019

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基于相变材料的全光切换平台,用于发光设备.

Olga Kushchenko1, Elena Bodiago1, Daniil Litvinov1

  • 1School of Physics and Engineering, ITMO University, St Petersburg 197101, Russia.

ACS applied materials & interfaces
|December 18, 2025
PubMed
概括
此摘要是机器生成的。

研究人员开发了一种使用相变材料 (PCM) 和矿发射器的新型光电子设备. 这项创新使光辐射的可逆控制和LED中可重写模式的创建成为可能.

关键词:
在Ge2Sb2Te5Te5中使用.完全光学切换的切换器排放模式 排放模式化佩洛夫斯基特 (Halogenated Perovskite) 是一种化的矿物.发光器件 发光器件 发光器件阶段变换材料的不同阶段变换材料.

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High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal
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相关实验视频

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科学领域:

  • 光子学和光电子学.
  • 材料科学是一种材料科学.
  • 设备工程 设备工程

背景情况:

  • 换相材料 (PCM) 在光子学,光电子学和电子学中至关重要.
  • 通过相切换,PCM提供可调节的光学和电子特性.
  • 将PCM与发光材料集成,可以提高设备的功能.

研究的目的:

  • 开发一种新的光电子装置,将矿发射器与相变材料集成在一起.
  • 通过PCM相切换来证明可逆的电光发射 (EL) 开/关控制.
  • 为了在没有 lithography 的 EL 设备中实现图案写作功能.

主要方法:

  • 制造一个光电子设备,结合矿发射器和PCM.
  • 使用PCM相位过渡来调节EL输出.
  • 采用局部阶段修改来生成模式.

主要成果:

  • 证明了可逆的电解发光的开/关控制.
  • 通过局部改变PCM阶段,实现了编写明显的排放模式的能力.
  • 展示了无需 lithography 的模式重写性.

结论:

  • 开发的设备为快速响应的LED提供了一条新的途径.
  • 能够重新配置和多次重写的排放模式.
  • 突出了PCM集成矿器件用于先进光电子的潜力.