Determination of Diameter and Index of Refraction of Textile Fibers by Laser Backscattering
Author(s) -
H. Okuda,
B. Stratton,
L. Meixler,
P. C. Efthimion,
D.K. Mansfield
Publication year - 2003
Publication title -
osti oai (u.s. department of energy office of scientific and technical information)
Language(s) - English
Resource type - Reports
DOI - 10.2172/814710
Subject(s) - optics , refractive index , birefringence , refraction , materials science , textile , intensity (physics) , forward scatter , fiber , laser , scattering , optical fiber , physics , composite material
A new method was developed to determine both diameters and indices of refraction and hence the birefringence of cylindrical textile and industrial fibers and bundles by measuring intensity patterns of the scattered light over an interval of scattering angles. The measured intensity patterns are compared with theoretical predictions (Mie theory) to determine fiber diameter and index of refraction. It is shown that the method is simple and accurate and may be useful as an on-line, noncontact diagnostic tool in real time
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