Coherent and intense multibeam generation by the apex of sharp nano-objects: Electron half-circular prism

B. Cho, T. Ishikawa, C. Oshima

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Mutually coherent multiple electron beams (multibeam) were generated from diffraction at the apex of sharp nano-objects, especially carbon nanotubes, in a field emission projection microscope. Simulation using a simple scalar diffraction model showed that the apex of sharp nano-objects played the role of an electron half-circular prism, deflecting an electron beam through a constant angle toward the prism axis. The multibeam diffraction pattern gave a high visibility of ∼0.8 and high intensity.

Original languageEnglish
Article number163102
JournalApplied Physics Letters
Issue number16
Publication statusPublished - 2007


ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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