Tellurium oxide glasses have a lot of scientific and technical interests due to their superior physical and chemical properties such as high refractive index, high dielectric constants, a wide band infrared transmittance, a low phonon energy and large third order non-linear optical susceptibility [1].

This work will focus on TeO2-TiO2-ZnO ternary glassy system which has been previously studied because both addition of TiO2 and ZnO is known for given very stable glasses having high polarizability and hyperpolarizability [2] and they are also reported as good candidates for ultra-low loss [3] optical material.

In this communication, we will present a new approach of understanding of medium range order structure of these glasses. In fact, we studied both the structure of the glasses by in situ Raman spectroscopy as a function of temperature and especially around the glass transition temperature (Tg) and the mechanical properties by Resonance Frequency Data Analysis (RFDA) experiments [4-5]. This work will evidence the link that we can point out from those two complementary approaches and will propose a new point of view on the correlation between mechanical and structural properties around Tg which could be a key point for the optical fiber shaping. Non-linear optical properties obtained by Z-scan experiment, will also be presented to evidence the huge interest of those glasses [6].

[1] A. P. Mirgorodsky, M. Soulis, P. Thomas, T. Merle-Méjean, M. Smirnov, Phys. Rev. B 73 (2006) 134206.

[2] J. C. Sabadel, P. Armand, D. Cachau-Herreillat, P. Baldeck, O. Doclot, A. Ibanez, et E. Philippot, J. Solid State Chem.132 (1997) 411

[3] L. Van Ultert et S. Wemple, Appl Phys Lett. 33 (1978) 57

[4] P. Mezeix, F. Célarié, P. Houizot, Y. Gueguen, F. Munoz, T. Rouxel, J. Non-Cryst. Solids 445-446 (2016) 45

[5] Synthesis, structural and mechanical investigations of new tellurite materials for non-linear optical applications, N.Ghribi PhD (2015)

[6] N. Ghribi, M. Dutreilh-Colas, J.-R. Duclère, T. Hayakawa, J. Carreaud, R. Karray, A. Kabadou, P. Thomas, Thermal, J. Alloys Comp. 622 (2015) 333