DECONVOLVING LENS TRANSFER-FUNCTIONS IN ELECTRON HOLOGRAMS

Authors
KAWASAKI T RODENBURG JM
Citation
T. Kawasaki et Jm. Rodenburg, DECONVOLVING LENS TRANSFER-FUNCTIONS IN ELECTRON HOLOGRAMS, Ultramicroscopy, 52(3-4), 1993, pp. 248-252
Citations number
7
Categorie Soggetti
Microscopy
Journal title
Ultramicroscopy → ACNP
ISSN journal
03043991
Volume
52
Issue
3-4
Year of publication
1993
Pages
248 - 252
Database
ISI
SICI code
0304-3991(1993)52:3-4<248:DLTIEH>2.0.ZU;2-I
Abstract
Methods for estimating defocus and aberration errors in sideband elect ron holography are discussed. A modification of the Gerchberg-Saxton a lgorithm is not successful, even in simulations, whereas minimization search of image contrast works for simulations but not very successful ly for experimental data. For crystalline objects, periodic continuati on does allow avoidance of sampling difficulties in deconvolving the t ransfer function.