Electron interferometry with nanogratings

Alexander D Cronin, Ben McMorran

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

We present an electron interferometer based on near-field diffraction from two nanostructure gratings. Lau fringes are observed with an imaging detector, and revivals in the fringe visibility occur as the separation between gratings is increased from 0.2 to 2.7 mm. The oscillations in visibility depend predictably on the wavelength of incident electrons. This verifies that 5 keV electrons diffracted by nanostructures remain coherent after propagating farther than the Talbot length, and hence proves that a Talbot-Lau interferometer for electrons can be built with nanostructure gratings. Distorted fringes due to a phase object are used to demonstrate an application for this type of electron interferometer.

Original languageEnglish (US)
Article number061602
JournalPhysical Review A
Volume74
Issue number6
DOIs
StatePublished - 2006

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interferometry
interferometers
gratings
electrons
visibility
near fields
oscillations
detectors
diffraction
wavelengths

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Physics and Astronomy(all)

Cite this

Electron interferometry with nanogratings. / Cronin, Alexander D; McMorran, Ben.

In: Physical Review A, Vol. 74, No. 6, 061602, 2006.

Research output: Contribution to journalArticle

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