LAUSR

The effect of Fe2O3 in sodium zinc phosphate glass system containing CuO with the chemical composition 40P2O5:38ZnO:1CuO:(21 − x)Na2O:xFe2O3 (where x = 1, 2, 3, 4, 5 and 6 mol%) has been studied. The glass formability of the prepared samples was examined by means of XRD which proved that there are no natural crystal contents. Archimedes method has been employed to measure the density of the prepared glass samples hence, the molar volume was calculated. The density and the molar volume were found to be increased by increasing Fe2O3 content. The optical spectroscopic analysis for the obtained glass samples has been carried out over the whole range (190–1000 nm) for studying the effect of bandpass absorption glass filter, its color peak center and UV cut-off. The center for bandpass filter is found to exhibit a red shift by increasing Fe2O3 content. Moreover, all glass samples showed a bandstop in UV-range which was increased by increasing Fe2O3 content. The results reveal the practicality of this glass composition in optical color glass bandpass filter for UV preventing applications such as UV-Laser protection.