Birefringence of Thin Uniaxial Polymer Films Estimated Using the Light Polarization Ellipse

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 line...

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Detalles Bibliográficos
Autores principales: Postolache, Mihai, Dimitriu, Dan Gheorghe, Nechifor, Cristina Delia, Condurache Bota, Simona, Closca, Valentina, Dorohoi, Dana Ortansa
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8914837/
https://www.ncbi.nlm.nih.gov/pubmed/35267886
http://dx.doi.org/10.3390/polym14051063
Descripción
Sumario: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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