On the use of Fourier analysis for the interferometric identification of very near objects

Authors
Castaneda, R Giraldo, J Arenas, G
Citation
R. Castaneda et al., On the use of Fourier analysis for the interferometric identification of very near objects, OPT COMMUN, 174(5-6), 2000, pp. 335-345
Citations number
8
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Optics & Acoustics
Journal title
OPTICS COMMUNICATIONS
ISSN journal
00304018 → ACNP
Volume
174
Issue
5-6
Year of publication
2000
Pages
335 - 345
Database
ISI
SICI code
0030-4018(20000201)174:5-6<335:OTUOFA>2.0.ZU;2-7
Abstract
An interferometric method for identifying two spatially coherent and very n ear amplitude-only objects is shown. The objects should be of similar shape but can be different in size or transmission. By analysing the Fourier spe ctrum of the intensity distribution of the Fraunhofer interferogram they pr oduce, it is possible to count the structures and, in certain cases, to rec onstruct them. Such a procedure is more useful than the visual inspection o r direct fringe analysis of the interferograms. (C) 2000 Elsevier Science B .V. All rights reserved.