Diffraction of 0.5 keV electrons from free-standing transmission gratings

Ben McMorran, John D. Perreault, T. A. Savas, Alex Cronin

Research output: Contribution to journalArticle

24 Scopus citations

Abstract

A nanostructured grating was used to diffract a low-energy (500 eV) electron beam, and the current transmitted into the zeroth diffraction order was greater than 5% of the incident beam current. This diffraction efficiency indicates that the 55-nm-wide grating bars absorb electrons but the 45-nm-wide slots between bars transmit electron de Broglie waves coherently. The diffraction patterns can be asymmetric, and can be explained by a model that incorporates an electrostatic potential energy for electrons within 20 nm of the grating structure calculated by the method of images.

Original languageEnglish (US)
Pages (from-to)356-364
Number of pages9
JournalUltramicroscopy
Volume106
Issue number4-5
DOIs
StatePublished - Mar 1 2006

Keywords

  • Electron holography
  • Electron interferometry
  • Image-charge
  • Inelastic scattering
  • Low voltage electron diffraction
  • Nanofabrication
  • Nanostructures

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Diffraction of 0.5 keV electrons from free-standing transmission gratings'. Together they form a unique fingerprint.

  • Cite this