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Proceedings Paper

Application of fractal masks with spiral phase distribution for the determination phase discontinuities in transparent objects
Author(s): Alexander A. Zinchik; Yana B. Muzychenko
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Paper Abstract

In this paper we propose the new method of nondestructive checking, based on application of the complex fractal masks with fractal amplitude part and spiral phase distribution photographed through the objects under study. Coherent optical image processing of the fractal masks allow to receive the separate information about components of the refractive index gradient and phase discontinuities. The power of high spatial frequencies of the fractal mask spectrum is ten times greater in comparison with spectrum of regular mask. The analysis of results of the inverse Fourier transform of the distorted spectrum of regular and fractal masks shows that the fractal mask with spiral phase distribution is more sensitive and allows obtain more precisely the value of distortion of the initial object.

Paper Details

Date Published: 8 May 2015
PDF: 6 pages
Proc. SPIE 9508, Holography: Advances and Modern Trends IV, 95080Z (8 May 2015); doi: 10.1117/12.2179563
Show Author Affiliations
Alexander A. Zinchik, ITMO Univ. (Russian Federation)
Yana B. Muzychenko, ITMO Univ. (Russian Federation)

Published in SPIE Proceedings Vol. 9508:
Holography: Advances and Modern Trends IV
Miroslav Hrabovský; John T. Sheridan; Antonio Fimia, Editor(s)

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