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Proceedings Paper

An Aperture-Dependent Phase Deviation In Holographic Interferometry
Author(s): J. de Jong
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Paper Abstract

In holographic interferometry, the phase difference governing the interference pattern appears to deviate slightly from the value that follows from the usual formula. This phase deviation 6 is a.o. due to the nonvanishing detector aperture. For the case that the detector is focussed on the object surface, we calculate this for double exposure holography. In many practical situations δ appears to be maximized by a function proportional to the longitudinal displacement and to the square of the angular detector aperture, while δ does not exceed the value of π usually. Related to holographical systems which can measure the phase differences very accurately, formulas are derived for δ in the paraxial as well as the non-paraxial situation. Since in the paraxial situation δ can be approximated accurately by a simple function of only two variables, the emphasis is laid on the question how accurately (S can be approximated by the paraxial formulas in the non-paraxial situation.

Paper Details

Date Published: 27 March 1985
PDF: 9 pages
Proc. SPIE 0492, 1984 European Conf on Optics, Optical Systems, and Applications, (27 March 1985); doi: 10.1117/12.943690
Show Author Affiliations
J. de Jong, Delft University of Technology (The Netherlands)

Published in SPIE Proceedings Vol. 0492:
1984 European Conf on Optics, Optical Systems, and Applications
Bouwe Bolger; Hedzer A. Ferwerda, Editor(s)

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