The  present special topic volume entitled “Glass Science and its Applications –  II†covers different glasses and glass ceramic materials for technological  and biomedical applications. In this special issue, the first review paper  reports on the linear and non- linear properties of different materials. The  second paper reports the visible-NIR luminescence and time-resolved emission  spectral profiles of Nd3+, and Er3+ doped silver zinc borate glasses. The  third paper, As2O3 glasses were identified as the low-loss materials for  long-distance optical transmission and CuO containing glasses are also draw  special attention because of the p-type semiconductivity property. Glass  system of composition Li2O-Na2O-B2O3: Fe2O3 with replacing alkali oxides one  by another have been reported in the fourth paper.
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