Optical and thermal characteristics of glasses based on TeO2

• Published in: Bulletin of materials science Vol. 35; no. 6; pp. 961 - 967
• Main Authors: YOUSEF, EL SAYED, AL-SALAMI, A E, HOTZEL, MARIO
• Format: Journal Article
• Language: English
• Published: India Springer-Verlag 01.11.2012; Springer Nature B.V
• Subjects: Accuracy; Chemistry and Materials Science; Composition; Diamond pyramid hardness; Engineering; Four-wave mixing; Glass transition temperature; Infrared spectroscopy; Lasers; Materials Science; Molecular weight; Nonlinear optics; Optical properties; Optics; Quaternary systems; Refractivity; Structural analysis; Tellurium dioxide; Thermal stability; IR; Oxide glasses; thermal stability; linear and nonlinear refractive index
• ISSN: 0250-4707; 0973-7669
• DOI: 10.1007/s12034-012-0393-4

Glass samples have been synthesized in quaternary system based on TeO 2 –oxide within composition, 85TeO 2 –5Nb 2 O 5 –5ZnO–5Ag 2 O, 68TeO 2 –5Nb 2 O 5 –20ZnO–7Na 2 O and [(75− x )TeO 2 –5Nb 2 O 5 –20ZnO– x PbO, x = 7, 18 mol%]. Structural characterization of the glasses was studied with respect to their thermal stability, refractive indices, third order nonlinear optical susceptibility, IR spectra and Vickers hardness. For four different prepared glasses, density in the range from 5·3744 to 6·0731 g· cm  − 1 , the glass transition temperature ( T g ) in the range from 326 to 350 °C and refractive indices, n , in the range from 2·1273 to 2·2123 at 435 nm and Vickers hardness, H v, in the range from 2·91 to 3·44 GPa were determined. The value of third order nonlinear optical susceptibilities 17·9 ·10  −  13  esu of glass within composition, 68TeO 2 –5Nb 2 O 5 –20ZnO–7PbO, was measured by using degenerate four-wave mixing (DFWM).