Manipulations of Wavefront Propagation: Useful Methods and Applications for Interferometric Measurements and Scanning
Joint Authors
Novoselski, Eitan
Yifrach, Ariel
Lanzmann, Emmanuel
Arieli, Yoel
Karsenty, Avraham
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-08-21
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Information Technology and Computer Science
Abstract EN
Phase measurements obtained by high-coherence interferometry are restricted by the 2π ambiguity, to height differences smaller than λ/2.
A further restriction in most interferometric systems is for focusing the system on the measured object.
We present two methods that overcome these restrictions.
In the first method, different segments of a measured wavefront are digitally propagated and focused locally after measurement.
The divergent distances, by which the diverse segments of the wavefront are propagated in order to achieve a focused image, provide enough information so as to resolve the 2π ambiguity.
The second method employs an interferogram obtained by a spectrum constituting a small number of wavelengths.
The magnitude of the interferogram’s modulations is utilized to resolve the 2π ambiguity.
Such methods of wavefront propagation enable several applications such as focusing and resolving the 2π ambiguity, as described in the article.
American Psychological Association (APA)
Karsenty, Avraham& Novoselski, Eitan& Yifrach, Ariel& Lanzmann, Emmanuel& Arieli, Yoel. 2017. Manipulations of Wavefront Propagation: Useful Methods and Applications for Interferometric Measurements and Scanning. Scanning،Vol. 2017, no. 2017, pp.1-7.
https://search.emarefa.net/detail/BIM-1197961
Modern Language Association (MLA)
Karsenty, Avraham…[et al.]. Manipulations of Wavefront Propagation: Useful Methods and Applications for Interferometric Measurements and Scanning. Scanning No. 2017 (2017), pp.1-7.
https://search.emarefa.net/detail/BIM-1197961
American Medical Association (AMA)
Karsenty, Avraham& Novoselski, Eitan& Yifrach, Ariel& Lanzmann, Emmanuel& Arieli, Yoel. Manipulations of Wavefront Propagation: Useful Methods and Applications for Interferometric Measurements and Scanning. Scanning. 2017. Vol. 2017, no. 2017, pp.1-7.
https://search.emarefa.net/detail/BIM-1197961
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1197961