Optical Anisotropy Of Unloaded Transparent Polymers

Sameh Salah Issa

doi:10.1117/12.941699

17 February 1987 Optical Anisotropy Of Unloaded Transparent Polymers

Sameh Salah Issa

Proceedings Volume 0814, Photomechanics and Speckle Metrology; (1987) https://doi.org/10.1117/12.941699
Event: 31st Annual Technical Symposium on Optical and Optoelectronic Applied Sciences and Engineering, 1987, San Diego, CA, United States

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.

Citation Download Citation

Sameh Salah Issa "Optical Anisotropy Of Unloaded Transparent Polymers", Proc. SPIE 0814, Photomechanics and Speckle Metrology, (17 February 1987); https://doi.org/10.1117/12.941699

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