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The Influence of CdO on Metallization Criterion and Polarizability of Sodium Zinc Phosphate Glass Matrix
Y.H. Elbashar and D.A. Rayan

A glass matrix with a chemical composition 40P2O5-39ZnO-(21-x)Na2O-xCdO (where, x = 1, 2, 3, 4, 5 and 6 mol%) prepared done using the conventional melting technique was obtained. The glass forming of the prepared samples was investigated by using XRD technique. The Archimedes’ method was used to determine the density of the prepared glass samples and the molar volume was calculated. The optical spectroscopic analysis of the prepared glass samples was carried out over the spectral range (190-2500 nm). The optical absorption and transmission spectra were recorded at room temperature using UV/VIS absorption (JASCO V570) spectrophotometer in the range of wavelength (190–2500) nm. The optical spectroscopic studies were performed over UV-visible- near IR spectral range in the wavelength interval of (190 – 2500 nm).The glass matrix shows a good transparency in both visible and near-IR spectrum ranges. At 2500 nm a considerably high transmission of about 78% is observed. The optical properties such as refractive index, dielectric constant, electric susceptibility and electronic polarizability of the prepared glass were evaluated. The results suggest the practicality of utilizing such new glass in the fabrication of optical supplies such as optical lenses. The metallization criteria data of the prepared glass show a good basis for predicting a particular nonlinear optical material.

Keywords: Phosphate Glass, Cadmium Oxide, glass lens, refractive index, Metallization Criterion