Please use this identifier to cite or link to this item:
Title: Finite aperture Fraunhofer holograms of two co-planar discs
Authors: Hobson, PR
Raouf, A
Keywords: Holography;Diffraction;In-line hologram;Metrology
Issue Date: 1993
Publisher: SPIE
Citation: Proceedings of SPIE. 1732(1993): 663-676
Abstract: In this paper we present a theoretical model describing the real images replayed from finite aperture Fraunhofer holograms of two identical co-planar objects. We have solved numerically the resulting image equations for the case of two circular disc objects, and compare our predictions with experimental measurements from in-line Fraunhofer holograms recorded on silver-halide emulsions. Three measurement criteria for calculating the disc diameters and separation are described, and their errors discussed. It is found experimentally that a criterion based on average intensity results in the smallest errors due to its insensitivity to the effects of coherent noise.
ISSN: 0-8194-0905-7
Appears in Collections:Electronic and Computer Engineering
Dept of Electronic and Computer Engineering Research Papers

Files in This Item:
File Description SizeFormat 
SPIE_1732.pdf562.14 kBAdobe PDFView/Open

Items in BURA are protected by copyright, with all rights reserved, unless otherwise indicated.