Fringes of equal tangential inclination by curvature-induced birefringence |
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| Authors: | M Medhat N I Hendawy A A Zaki |
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| Institution: | a Department of Physics, Faculty of Science, Ain Shams University, Cairo, Egypt;b Department of Physics, Faculty of Science, Benha University, Benha, Kalubia, Egypt |
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| Abstract: | A new kind of interference fringes, fringes of equal tangential inclination by curvature-induced birefringence, is presented. These are two-beam interference fringes produced by bending a thin sheet of birefringent material into a part of an exact cylinder such that the curvature is constant. Due to this curvature there is a uniform birefringence being induced. The change in birefringence induced by applying different radii of curvatures to a Fortepan sheet is measured. The stored (fixed) or natural birefringence of this sheet is deduced. |
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| Keywords: | Birefringence Interference Photoelasticity |
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