Phase recovery for electron holography using Gerchberg-Papoulis iterative algorithm

Takeshi Fujita, Martha McCartney

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

The Gerchberg-Papoulis (GP) iterative algorithm is applied to electron holographic reconstruction to supplement the Fourier-transform method. The GP algorithm can recover the phase to high accuracy using simulated holograms. This method is useful when a region of known amplitude is present, such as a region of vacuum or uniform thickness. Modulations of the phase on the order of 0.1 rad can be corrected significantly using this algorithm.

Original languageEnglish (US)
Pages (from-to)279-286
Number of pages8
JournalUltramicroscopy
Volume102
Issue number4
DOIs
StatePublished - Mar 1 2005

Keywords

  • Electron Holography
  • Image processing
  • Phase recovery
  • Phase retrieval

ASJC Scopus subject areas

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

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