Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Scanning Electron Microscopy01:07

Scanning Electron Microscopy

4.2K
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
Accelerated...
4.2K
X-ray Crystallography02:18

X-ray Crystallography

23.9K
The size of the unit cell and the arrangement of atoms in a crystal may be determined from measurements of the diffraction of X-rays by the crystal, termed X-ray crystallography.
Diffraction
Diffraction is the change in the direction of travel experienced by an electromagnetic wave when it encounters a physical barrier whose dimensions are comparable to those of the wavelength of the light. X-rays are electromagnetic radiation with wavelengths about as long as the distance between neighboring...
23.9K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Subsurface Carbon Incorporation Controls Graphene Nucleation on Ir(111).

ACS applied materials & interfaces·2026
Same authorSame journal

Directional sensitivity of the <math><mrow><mrow><msub><mrow><mi>A</mi></mrow> <mrow><mn>1</mn> <mi>g</mi></mrow></msub></mrow></mrow></math> phonon in biaxially strained bismuth heterofilms studied by transient white light reflectivity.

Structural dynamics (Melville, N.Y.)·2026
Same author

Implementation and performance of a fiber-coupled CMOS camera in an ultrafast reflective high-energy electron diffraction experiment.

Structural dynamics (Melville, N.Y.)·2025
Same author

Quantitative determination of the electric field strength in a plasmon focus from ponderomotive energy shifts.

Nanophotonics (Berlin, Germany)·2024
Same author

A modular table-top setup for ultrafast x-ray diffraction.

The Review of scientific instruments·2024
Same author

Interplay of Kinetic Limitations and Disintegration: Selective Growth of Hexagonal Boron Nitride and Borophene Monolayers on Metal Substrates.

ACS nano·2023

相关实验视频

Updated: Jun 30, 2025

Measurements of Long-range Electronic Correlations During Femtosecond Diffraction Experiments Performed on Nanocrystals of Buckminsterfullerene
08:44

Measurements of Long-range Electronic Correlations During Femtosecond Diffraction Experiments Performed on Nanocrystals of Buckminsterfullerene

Published on: August 22, 2017

7.8K

通过超快速反射的高能电子衍射在表面上的结构动态.

Michael Horn-von Hoegen1

  • 1Department of Physics and Center for Nanointegration CENIDE, University of Duisburg-Essen, Lotharstrasse. 1, 47057 Duisburg, Germany.

Structural dynamics (Melville, N.Y.)
|March 18, 2024
PubMed
概括
此摘要是机器生成的。

超快速的表面科学研究揭示了纳米级热传输和使用秒激光脉冲的振动抑制. 在700 fs中,在Si(111) 上进行了非热诱导的驱动相位过渡,进入了元稳定状态.

更多相关视频

Angle-resolved Photoemission Spectroscopy At Ultra-low Temperatures
08:53

Angle-resolved Photoemission Spectroscopy At Ultra-low Temperatures

Published on: October 9, 2012

17.6K
Synchrotron X-ray Microdiffraction and Fluorescence Imaging of Mineral and Rock Samples
10:12

Synchrotron X-ray Microdiffraction and Fluorescence Imaging of Mineral and Rock Samples

Published on: June 19, 2018

9.0K

相关实验视频

Last Updated: Jun 30, 2025

Measurements of Long-range Electronic Correlations During Femtosecond Diffraction Experiments Performed on Nanocrystals of Buckminsterfullerene
08:44

Measurements of Long-range Electronic Correlations During Femtosecond Diffraction Experiments Performed on Nanocrystals of Buckminsterfullerene

Published on: August 22, 2017

7.8K
Angle-resolved Photoemission Spectroscopy At Ultra-low Temperatures
08:53

Angle-resolved Photoemission Spectroscopy At Ultra-low Temperatures

Published on: October 9, 2012

17.6K
Synchrotron X-ray Microdiffraction and Fluorescence Imaging of Mineral and Rock Samples
10:12

Synchrotron X-ray Microdiffraction and Fluorescence Imaging of Mineral and Rock Samples

Published on: June 19, 2018

9.0K

科学领域:

  • 表面科学是一门科学.
  • 超快速光谱法 超快速光谱法
  • 材料科学是一种材料科学.

背景情况:

  • 表面过程发生在pico-到femtosecond时间尺度上.
  • 研究这些需要先进的表面科学技术和超快激光脉冲.

研究的目的:

  • 研究纳米级的热传输和振动减缓.
  • 分析表面的超快,非热相变的情况.

主要方法:

  • 探针光谱学使用 femtosecond (fs) 激光脉冲.
  • 超快速反射高能电子衍射 (URHEED) 用于表面灵敏度.
  • 德拜-沃勒效应和热传输和冷却速率的点形状分析.

主要成果:

  • 通过异质接口和吸附剂系统中的振动阻尼确定纳米级热传输.
  • 测量了表轴Ge纳米结构的不同冷却速率.
  • 证明了In/Si{111}表面重建的非热,fs驱动的相位过渡.

结论:

  • 五秒激光技术可以探测超快速的表面动态.
  • 在一个非热驱动的相位过渡后,In/Si111) 系统表现出一个超冷的元稳定状态.