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Optical Engineering

Analysis of a quasi-periodical structure through its autocorrelation function
Author(s): Yobani Mejia; Vladimir B. Markov; Roman Castaneda
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Paper Abstract

The method of analysis and reconstruction of the structure for a 1-D nonregular grating composed of N identical apertures is discussed. The transmittance function of the grating is expressed as the sum of transmittance functions of pairs of the apertures, and the classes of these pairs are determined through their separation. Applying the autocorrelation technique to the function of intensity distribution in the far field of such a grating’s transmittance, it is possible to determine grating autocorrelation function. This function contains complete information concerning the actual structure of the grating itself, i.e., classes of the pairs of the apertures and their populations. With such information, it is possible to reconstruct the structure of the object.

Paper Details

Date Published: 1 October 1996
PDF: 7 pages
Opt. Eng. 35(10) doi: 10.1117/1.600970
Published in: Optical Engineering Volume 35, Issue 10
Show Author Affiliations
Yobani Mejia, Ctr. Internacional de Fisica (Colombia)
Vladimir B. Markov, Institute of Applied Optics (United States)
Roman Castaneda, Univ. Nacional de Colombia Sede Medellin (Colombia)

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