Electrical and Infrared Properties of Glasses in the System Bi₂O₃—TeO₂

Low-frequency Raman scattering in alkali tellurite glasses

“…Tellurite glasses have scientific and technological interest due to their attractive physical properties such as low melting points, high dielectric constant (Stanworth 1952;Ulrich 1964), high refractive index (Stanworth 1952) and good infrared transmissivity (Burger et al 1985). Compared with silicate and phosphate glasses, tellurites exhibit relatively higher refractive indices, dielectric constants and lower phonon energies.…”

Thermal and optical properties of TeO2–ZnO–BaO glasses

“…Most importantly, they transmit over a wide range of wavelengths, from 0.5 μm to 6 μm, are not photosensitive and offer the thermal and mechanical stability of oxide glasses [1][2][3][4]. In addition, they possess high linear and nonlinear refractive indices, low cut-off phonon energies around 750 cm − 1 , high rare-earth solubility and a high Raman gain coefficient [5,6], all of which are important for applications, and in particular for the development of mid-IR fiber laser sources.…”

Structural investigations of the xTeO2–(1−x)GeO2 (x=0, 0.2, 0.4, 0.6, 0.8 and 1) tellurite glasses: A composition dependent Raman spectroscopic study

“…Tellurite glasses have scientific and technological interest due to their attractive physical properties such as low melting points, high dielectric constant [1,2], high refractive index [2] and good infrared transmissivity [3]. The refractive indices allow the utilization of these glasses for non-linear optical materials [4] and the phonon energies have at least two important consequences, the improved infrared transmission up to 6 μm and the low multiphonon decay rates compared to other network oxide glasses.…”