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Proceedings Paper

Shadow method of scale with a-posteriori increase of measurements sensitivity
Author(s): Nikolay M. Spornik; M. Yu. Serenko
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Paper Abstract

The method of measurement of a derivative of a function of phase distribution in the object plane is dealt with in the paper. The method consists of recording in the phase object image plane of a one-dimensional grating defocused image and in subsequent coherent optical processing. As a result of grating image repeated coherent re-recording with filtering of lateral orders of diffraction, increase of measurement sensitivity is obtained. Experimental results, characterizing 16-times sensitivity increase of measurements, are shown.

Paper Details

Date Published: 1 October 1991
PDF: 8 pages
Proc. SPIE 1508, Industrial Applications of Holographic and Speckle Measuring Techniques, (1 October 1991); doi: 10.1117/12.47101
Show Author Affiliations
Nikolay M. Spornik, Grodno State Univ. (Belarus)
M. Yu. Serenko, Grodno State Univ. (Belarus)

Published in SPIE Proceedings Vol. 1508:
Industrial Applications of Holographic and Speckle Measuring Techniques
Werner P. O. Jueptner, Editor(s)

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