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相关概念视频

Overview of Electron Microscopy01:25

Overview of Electron Microscopy

The wavelengths of visible light ultimately limit the maximum theoretical resolution of images created by light microscopes. Most light microscopes can only magnify 1000X, and a few can magnify up to 1500X. Electrons, like electromagnetic radiation, can behave like waves, but with wavelengths of 0.005 nm, they produce significantly greater resolution up to 0.05 nm as compared to 500 nm for visible light. An electron microscope (EM) can create a sharp image that is magnified up to 2,000,000X.
Scanning Electron Microscopy01:07

Scanning Electron Microscopy

A scanning electron microscope (SEM) is used to study the surface features of a sample by using an electron beam that scans the sample surface in a two-dimensional manner. Typically, areas between ~1 centimeter to 5 micrometers in width can be imaged. SEM can be used to image bacteria, viruses, tissues as well as larger samples like insects. Conventional SEM gives a magnification ranging from 20X to 30,000X and spatial resolution of 50 to 100 nanometers.
Fundamental Principles
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相关实验视频

Updated: Jun 18, 2026

Soft Lithographic Functionalization and Patterning Oxide-free Silicon and Germanium
12:38

Soft Lithographic Functionalization and Patterning Oxide-free Silicon and Germanium

Published on: December 16, 2011

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使用直接激光干扰图案对非金属材料的结构和功能化:一篇综述.

Lucinda Mulko1, Marcos Soldera1,2, Andrés Fabián Lasagni1,3

  • 1Technische Universität Dresden, Institut für Fertigungstechnik, George-Baehr-Str. 3c, 01069, Dresden, Germany.

Nanophotonics (Berlin, Germany)
|December 5, 2024
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概括

直接激光干扰图案 (DLIP) 在各种材料上创建精确的表面纹理. 这份审查详细介绍了DLIP的细节.

关键词:
陶制品的陶制品是一种陶.复合材料是一种复合材料.直接激光干扰模式的设计模式聚合物是一种聚合物.半导体 半导体 半导体表面微型/纳米纹理.

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相关实验视频

Last Updated: Jun 18, 2026

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12:38

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Published on: December 16, 2011

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科学领域:

  • 材料科学与工程 材料科学与工程
  • 激光物理和光子学 激光物理和光子学

背景情况:

  • 直接激光干扰图案 (DLIP) 是一种多功能,高通量激光基础的表面结构化技术.
  • 从历史上看,DLIP一直被广泛应用于工业应用的金属表面.
  • 新兴兴趣突出了DLIP在先进领域的非金属材料的潜力.

研究的目的:

  • 对包括聚合物,陶,复合材料和半导体在内的非金属材料的DLIP结构进行全面审查.
  • 概述DLIP处理这些材料的关键发现和相关结果.
  • 在DLIP期间阐明激光辐射与非金属之间的相互作用机制.

主要方法:

  • 使用重叠的激光束在材料表面产生干扰图案.
  • 采用化和/或剥离来创建周期性表面纹理.
  • 对DLIP的现有文献进行了审查,该文献适用于各种非金属基板.

主要成果:

  • 总结了DLIP在各种非金属表面功能化方面的成功应用.
  • 详细介绍了通过DLIP可实现的结果表面功能.
  • 突出了光子学,光电子学,纳米技术和生物医学方面的有前途的应用.

结论:

  • DLIP是一种强大的技术,用于定制非金属材料的表面特性.
  • 该审查提供了DLIP在这些新兴领域的能力和应用的综合概述.
  • 对激光材料相互作用的进一步研究可以解锁新的功能和应用.