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Proceedings Paper

Optical Anisotropy Of Unloaded Transparent Polymers
Author(s): Sameh Salah Issa
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Paper Abstract

It is shown that unloaded transparent polymers, in contradiction with the available information, are optically anisotrope in certain directions. A polarized He Ne laser beam, moving in the planes of plate-samples, has been used in scanning plates of different polymers. Octagonally shaped plates were machined out to enable data acquisition from four different directions. The observed scattered radiation showed periodical extinction of light intensity in harmonic sense. This optic phenomenon which result in parallel fringes, is referred to the crystallographic system of the material. The number of fringes per unit length will be designated by Issa-number.

Paper Details

Date Published: 17 February 1987
PDF: 6 pages
Proc. SPIE 0814, Photomechanics and Speckle Metrology, (17 February 1987); doi: 10.1117/12.941699
Show Author Affiliations
Sameh Salah Issa, Kuwait University (Kuwait)

Published in SPIE Proceedings Vol. 0814:
Photomechanics and Speckle Metrology
Fu-Pen Chiang, Editor(s)

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