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Related Concept Videos

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.
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Scanning Electron Microscopy01:07

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Super-resolution Fluorescence Microscopy01:37

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Single-Digit Nanometer Electron-Beam Lithography with an Aberration-Corrected Scanning Transmission Electron Microscope
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Single-Digit Nanometer Electron-Beam Lithography with an Aberration-Corrected Scanning Transmission Electron Microscope

Published on: September 14, 2018

Double aberration correction in a low-energy electron microscope.

Th Schmidt1, H Marchetto, P L Lévesque

  • 1Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 6-8, D-14195 Berlin, Germany. schmidtt@fhi-berlin.mpg.de

Ultramicroscopy
|August 10, 2010
PubMed
Summary
This summary is machine-generated.

Researchers achieved sub-4 nm lateral resolution in low-energy electron microscopy (LEEM) by correcting lens aberrations. This breakthrough enables nanoscale surface imaging, including the herringbone reconstruction on Au(111).

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Preparation and Observation of Thick Biological Samples by Scanning Transmission Electron Tomography
08:04

Preparation and Observation of Thick Biological Samples by Scanning Transmission Electron Tomography

Published on: March 12, 2017

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Last Updated: Jun 10, 2026

Single-Digit Nanometer Electron-Beam Lithography with an Aberration-Corrected Scanning Transmission Electron Microscope
10:25

Single-Digit Nanometer Electron-Beam Lithography with an Aberration-Corrected Scanning Transmission Electron Microscope

Published on: September 14, 2018

Preparation and Observation of Thick Biological Samples by Scanning Transmission Electron Tomography
08:04

Preparation and Observation of Thick Biological Samples by Scanning Transmission Electron Tomography

Published on: March 12, 2017

Area of Science:

  • Surface science
  • Electron microscopy
  • Nanotechnology

Background:

  • Low-energy electron microscopy (LEEM) is crucial for surface analysis.
  • Spherical and chromatic aberrations limit LEEM's lateral resolution.
  • Previous LEEM resolutions were insufficient for observing fine surface structures.

Purpose of the Study:

  • To improve the lateral resolution of LEEM below 4 nm.
  • To develop a method for correcting spherical and chromatic aberrations in LEEM.
  • To enable nanoscale imaging of surface reconstructions.

Main Methods:

  • Simultaneous correction of spherical and chromatic aberrations in the LEEM lens system.
  • Development of an experimental criterion for quantifying aberration correction.
  • Optimization of the electron optical system for enhanced resolution.

Main Results:

  • Achieved a lateral resolution of 2.6 nm in LEEM, a first for this technique.
  • Successfully demonstrated the experimental criterion for aberration correction and system optimization.
  • Enabled the first surface-sensitive, electron microscopic observation of the herringbone reconstruction on Au(111).

Conclusions:

  • Simultaneous aberration correction is key to achieving high lateral resolution in LEEM.
  • The developed methods allow for precise optimization of LEEM systems.
  • This advancement opens new possibilities for nanoscale surface characterization.