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Optical Engineering

Holographic lenses for performing complete Fourier transformations
Author(s): R. Blank; Asher A. Friesem
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Paper Abstract

A quadratic-phase holographic lens can give a Fourier transform that is multiplied by an undesired parasitic phase, caused by the off-axis configuration. We show that it is possible to significantly reduce the parasitic phase by controlling the recording and readout geometries of the holographic lens so as to allow complete Fourier transformation. As a practical example we incorporate such a holographic lens into a conventional coherent light correlator, and show how to optimize the correlation peaks even when the illumination wavelength of the correlator differs from that used when recording the holographic lens and the filter.

Paper Details

Date Published: 1 March 1992
PDF: 9 pages
Opt. Eng. 31(3) doi: 10.1117/12.56093
Published in: Optical Engineering Volume 31, Issue 3
Show Author Affiliations
R. Blank, Weizmann Institute of Science (Israel)
Asher A. Friesem, Weizmann Institute of Science (Israel)

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