Abstract

Three methods are given for the addition and subtraction of holographic images. These methods are (1) the photographic superposition of two holograms, (2) the interlacing of two holograms, and (3) the spatial averaging of two or more holograms. The three methods are best suited to microwave or acoustic holography where the wavelength used is relatively large. Microwave holograms recorded at a wavelength of 8.62 mm were used to illustrate the effectiveness of the techniques. The experimental results obtained by these new methods proved to be satisfactory and these techniques promise to have practical applications.

© 1973 Optical Society of America

Moiré microwave holography

Loris G. Gregoris and Keigo lizuka
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