A simple interferometric technique was used for measuring the absolute birefringence of an anisotropic material. The sample has constant thickness. It was placed between crossed polarizers and illuminated with a parallel beam of monochromatic light. The resulting interferograms were analyzed to deduce the birefringence and its dispersion across the visible spectrum. A Cauchy formula was applied to fit the experimental data. The same technique was used for a variable thickness with constant rate (a wedge form) of the same sample. Interference fringes was formed in the photographic plate. The value of the birefrengence was also measured.
(2003). Interferometric Method to Determine the Birefringence for an Anisotropic Material. Egyptian Journal of Solids, 26(2), 231-239. doi: 10.21608/ejs.2003.150161
MLA
. "Interferometric Method to Determine the Birefringence for an Anisotropic Material". Egyptian Journal of Solids, 26, 2, 2003, 231-239. doi: 10.21608/ejs.2003.150161
HARVARD
(2003). 'Interferometric Method to Determine the Birefringence for an Anisotropic Material', Egyptian Journal of Solids, 26(2), pp. 231-239. doi: 10.21608/ejs.2003.150161
VANCOUVER
Interferometric Method to Determine the Birefringence for an Anisotropic Material. Egyptian Journal of Solids, 2003; 26(2): 231-239. doi: 10.21608/ejs.2003.150161