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Updated: Sep 30, 2025

Cooling Rate Dependent Ellipsometry Measurements to Determine the Dynamics of Thin Glassy Films
Published on: January 26, 2016
Birefringence of Thin Uniaxial Polymer Films Estimated Using the Light Polarization Ellipse
Mihai Postolache1, Dan Gheorghe Dimitriu2, Cristina Delia Nechifor3
1Faculty of Automatic Control and Computer Engineering, Gheorghe Asachi Technical University, 700050 Iasi, Romania.
Abstract:
A simple method for determining the linear birefringence of the thin layers based on the determination of the orientation of the polarization ellipse of totally polarized light is proposed and it is applied to PVA thin foils. Theoretical notions and the experimental procedure are described. The linear birefringence of polymer thin foils with different degrees of stretching is determined and the applicability of the method is discussed.
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