Phase recovery for electron holography using Gerchberg-Papoulis iterative algorithm
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Digital Inline Holographic Microscopy (DIHM) of Weakly-scattering Subjects
Published on: February 8, 2014
Takeshi Fujita1, M R McCartney
1Center for Solid State Science, Arizona State University, Tempe, AZ 85287-1704, USA. takeshi.fujita@asu.edu
Ultramicroscopy
|February 8, 2005
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.
