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Proceedings Paper

New technique for reconstruction of a complex wave field by means of measurement of three-dimensional intensity
Author(s): Jinhong Tu; Shinichi Tamura
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Paper Abstract

In this paper a new method for 2D complex wave reconstruction is developed by measurement of 3D intensity in a first order optical system under partially coherent illumination. The system includes two cylindrical lenses oriented along two perpendicular axes in a plane perpendicular to the propagation axis. When the parameters of the 2D lens system are set to satisfy the conditions of fractional Fourier transform independently in both dimensions, the input complex wave can be determined by measurements of intensities in a set of planes, and the mutual intensity is calculated through integrals of distributional coordinates and the fractional orders of fractional Fourier transform. As a result, the case of partially coherent illumination of Gaussian Schell-model is studied. In the numerical simulation it is found that phase structure in the input planes might be retrieved by this method in this system. The approach may provide an alternative way of recovering the phase object.

Paper Details

Date Published: 31 October 1997
PDF: 8 pages
Proc. SPIE 3170, Image Reconstruction and Restoration II, (31 October 1997); doi: 10.1117/12.279709
Show Author Affiliations
Jinhong Tu, Osaka Univ. (Japan)
Shinichi Tamura, Osaka Univ. (Japan)

Published in SPIE Proceedings Vol. 3170:
Image Reconstruction and Restoration II
Timothy J. Schulz, Editor(s)

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