Effect of Bi2O3 content on non linear optical properties of TeO2.Bi2O3.B2O3.ZnO glass system

In the present theoretical work we have studied the optical properties such as optical electronegativity, refractive index, third order nonlinear optical susceptibility and nonlinear refractive index by varying composition of Bi2O3 for 60 TeO2-(30-x) B2O3-xBi2O3-10ZnO (where x=0, 5, 10, 15 and 20) glass samples. There is hardly any information in the literature on the evaluation of optical electronegativity using the optical energy gap values for the glass samples under reference. The glasses possess high value of refractive index (2.248-2.332), high values of third order non linear susceptibility in the 1.33-2.43×10−12esu range and high values of non linear refractive index (2.21-3.92 ×10−11) and the value of all these parameters increase with increasing Bi2O3 content.