Electronic polarizability and third-order nonlinearity of Nd3+ doped borotellurite glass for potential optical fiber

Abstract

The glass series with composition of {[(TeO2)0.70 (B2O3)0.30]0.7 (ZnO)0.3}1-y (Nd2O3)y where, y = 0.005, 0.01, 0.02, 0.03, 0.04 and 0.05; was fabricated via melt-quenched technique. The third-order optical nonlinearity was observed by using Z-scan technique. Polarizability and third-order nonlinearity of borotellurite glass doped with neodymium (Nd3+) will be reported. This work presents the effect of neodymium ions on the linear and nonlinear optical performance of borotellurite glass for potential photonics applications. The structure and optical performance of the resulting transparent neodymium doped borotellurite glass are characterized. The reduction of optical band gap energy, Eg is observed which shows the alteration of tellurite structure by the Nd3+. The values of electronic polarizability are enhanced with an increase of Nd3+ ions. The enhancement of electronic polarizability provides an excellent medium for nonlinear optical applications. The optical basicity of the investigated materials shows non-linear trend along with Nd3+ ions concentration. The Z-scan data for third-order optical nonlinearities suggest that the glass materials are excellent to be used as a medium in nonlinear optical fiber. Therefore, the investigated glass materials may provide a good material for photonic applications.