Partially coherent contrast-transfer-function approximation

Title
Partially coherent contrast-transfer-function approximation
Publication Date
2016
Author(s)
Nesterets, Yakov
Gureyev, Timur
( author )
OrcID: https://orcid.org/0000-0002-1103-0649
Email: tgureyev@une.edu.au
UNE Id une-id:tgureyev
Type of document
Journal Article
Language
en
Entity Type
Publication
Publisher
Optical Society of America
Place of publication
United States of America
DOI
10.1364/josaa.33.000464
UNE publication id
une:20322
Abstract
The contrast-transfer-function (CTF) approximation, widely used in various phase-contrast imaging techniques, is revisited. CTF validity conditions are extended to a wide class of strongly absorbing and refracting objects, as well as to nonuniform partially coherent incident illumination. Partially coherent free-space propagators, describing amplitude and phase in-line contrast, are introduced and their properties are investigated. The present results are relevant to the design of imaging experiments with partially coherent sources, as well as to the analysis and interpretation of the corresponding images.
Link
Citation
Optical Society of America. Journal A: Optics, Image Science, and Vision, 33(4), p. 464-474
ISSN
1520-8532
1084-7529
Start page
464
End page
474

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