An electron Talbot interferometer

Benjamin J. McMorran, Alexander D. Cronin

Research output: Contribution to journalArticle

53 Scopus citations

Abstract

We report the first demonstration of a Talbot interferometer for electrons. The interferometer was used to image the Talbot carpet behind a nanofabricated material grating. The Talbot interferometer design uses two identical gratings, and is particularly sensitive to distortions of the incident wavefronts. To illustrate this we used our interferometer to measure the curvature of concave wavefronts in a weakly focused electron beam. We describe how this wavefront curvature demagnified the Talbot revivals, and we discuss further applications for electron Talbot interferometers.

Original languageEnglish (US)
Article number033021
JournalNew Journal of Physics
Volume11
DOIs
StatePublished - Mar 17 2009

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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