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Conclusions

  • Akira Tonomura
Chapter
  • 480 Downloads
Part of the Springer Series in Optical Sciences book series (SSOS, volume 70)

Abstract

Electron holography was invented by D. Gabor in 1948, but new applications of electron holography have only recently been opened up by making the best use of coherent beams from both a laser and a field-emission electron beam. Holography faithfully transforms electron wave fronts into optical wave fronts, enabling versatile optical techniques to become applicable to electron optics. The original objective of holography was to exceed the resolution limit of electron microscopes by compensating, in the optical reconstruction stage, for the spherical aberration of the electron lens. Attempts have been made to actually achieve this objective, thus increasing the levels of technology to where we are on the brink of improving the resolution and making new discoveries.

Keywords

Wave Front Electron Lens Electron Wave Function Electron Optic Spherical Aberration 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Copyright information

© Springer-Verlag Berlin Heidelberg 1999

Authors and Affiliations

  • Akira Tonomura
    • 1
  1. 1.Advanced Research LaboratoryHitachi, Ltd.SaitamaJapan

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