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Introduction

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

Abstract

Electron holography is an imaging technique that records the electron interference pattern of an object on film (hologram) and then reconstructs an optical image by illuminating the hologram with a laser beam. In this process, electron wave fronts are transformed into optical wave fronts. Images of microscopic objects and fields that are so small that they can be observed only by using an electron beam with an extremely short wavelength are enlarged and reconstructed on an optical bench. This allows versatile optical techniques to be applied to overcome the limitations of electron microscopes.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1999

Authors and Affiliations

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

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