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Proceedings Paper

Analysis Of The Diffraction Spectrum Of A Population Of Particles
Author(s): J. Fleuret; H. Maitre; J. F. Thery
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Paper Abstract

We study the diffraction spectrum of a population of circular objects randomly distributed. We present a rigorous study of the deconvolution of the intensity of a diffracted spectrum, permitting us to obtain the complete histogram of the distribution of sizes. (The method is applied notably to multi-modal histo-grams). The granularity term corresponding to the random positionings of diffracting objects was studied by means of a statistical model based on the independence of the positionings of the objects. We find that the size of the speckle wo is proportional to the inverse of the width of the object field studied. In the field of frequencies greater than wo we find the conventional properties of the speckle, which permits us to verify the approximations made in the complete expression of the spectral intensity recorded.

Paper Details

Date Published: 18 April 1978
PDF: 5 pages
Proc. SPIE 0136, 1st European Conf on Optics Applied to Metrology, (18 April 1978); doi: 10.1117/12.956172
Show Author Affiliations
J. Fleuret, Ecole Nationale Superieure des Telecommunications (France)
H. Maitre, Ecole Nationale Superieure des Telecommunications (France)
J. F. Thery, Ecole Nationale Superieure des Telecommunications (France)


Published in SPIE Proceedings Vol. 0136:
1st European Conf on Optics Applied to Metrology
Michel H. Grosmann; Patrick Meyrueis, Editor(s)

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