Does electron holography energy-filter?

John Spence, J. M. Zuo

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

The contribution of inelastic scattering to off-axis electron holograms is considered. For a sample which introduces a single sharp energy loss δE, we find that this loss contributes time-independent interference fringes to the hologram provided δE<ΔE, where ΔE is the electron source energy spread. The relevance of this to two-beam lattice imaging at the Bragg condition is outlined, and the relationship between the uncertainty principle, the Van Cittert-Zernike theorem and the phase-space interpretation of coherence and Brightness reviewed.

Original languageEnglish (US)
Pages (from-to)185-190
Number of pages6
JournalUltramicroscopy
Volume69
Issue number3
DOIs
StatePublished - Oct 1 1997

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Instrumentation

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