This work presents the elasto optic effect and some optical properties of a glass system with a chemical composition (15+x)Na2O-(43-x)B2O3-40ZnO-2Nd2O3 (where x = 0, 5 and 10), which has been prepared using the melt quenching method. Density and refractive index were measured. Molar mass, permittivity, molar refraction, reflectance, phase velocity, Brewster angle, polarizability, electric susceptibility and elasto optic coefficient were estimated. X-ray diffraction analysis conformed that amorphous nature of the prepared glass were found. The density and molar volume was followed the normal behavior of glass system for the three samples. The effects of Na2O content on the glass system were causing effect of the estimated values with changing of the boron network of BO3 and the BO4. The theoretical results that used in this research paper are good agreement to be followed for any expecting results to any oxide glass materials. Clausius-Mossotti is an excellent method for calculating the optical behaviors like reflectance, phase velocity, Brewster angle, polarizability, electric susceptibility or any related optical properties for any oxide glass materials.

Keywords: Prism, glass, Refractive index, Borate glass.