Optical basicity, polarizability and spectroscopic investigations of CuO doped TeO2-B2O3 glass system

A study of the spectroscopic properties, as well as polarizability and optical basicity of TeO2-B2O3 glasses doped with CuO using density, XRD, and UV-Vis analysis, is presented in this paper. The TeO2-B2O3 - CuO glasses are fabricated using the melt-quenching method. The glasses proved to be amorphous in nature from the XRD which was confirmed by the UV-Vis spectra. The peak observed in the pattern of the 0% CuO sample represents the presence of a crystalline phase of alpha-TeO2 and/or gamma-TeO2. Important optical and physical parameters are discussed such as the refractive index (2.318-2.378), metallization criterion (0.4069-0.3919), optical basicity (0.7995-0.8057), electronic polarizability (0.2358-0.2410), linear dielectric susceptibility (0.3480-0.3704 esu), and third order non-linear dielectric susceptibility (1.466 x 1012-1.882 x 1012 esu). Based on the refractive index, metallization criterion, electronic polarizability, optical basicity, and dielectric susceptibility values, the glasses could present great potential applications in fiber optics and laser applications.