Linear and nonlinear optical properties of Gd3+ doped zinc borotellurite glasses for all optical switching applications

• Main Authors: Eevon, C., Halimah, M. K., Zakaria, A., Azurahanim, C. A. C., Azlan, M. N., Faznny, M. F.
• Format: Article
• Language: English
• Published: Elsevier 2016
• Subjects: QC Physics
• Online Access: http://ir.unimas.my/id/eprint/40094/3/Linear.pdf; http://ir.unimas.my/id/eprint/40094/; https://www.sciencedirect.com/science/article/pii/S2211379716300742#!; http://dx.doi.org/10.1016/j.rinp.2016.10.010

In this work, linear and nonlinear optical parameters of zinc borotellurite glasses doped with Gd3+ have been studied for all-optical switching applications. A series of gadolinium zinc borotellurite glasses were synthesized by using conventional melt quenching technique. Optical absorption spectra were recorded by UV–vis spectroscopy. From the optical absorption spectra, the cut-off wavelength, optical band gap, Urbach energy and refractive index have been determined and are related to the structural changes in the glass systems. The nonlinear optical properties of Gd3+ doped glasses are investigated by using Z-scan technique. The values of nonlinear refractive index and absorption coefficient with closed and opened apertures of the Z-scan, respectively, were determined for proper utilization in nonlinear optical devices.