Structure-property correlations in TiO 2 -Bi 2 O 3 -B 2 O 3 -TeO 2 glasses

Structural and thermal properties of vanadium tellurite glasses

“…The molecular dynamics simulation studies show the coordination number of Te-O to be 3.69, while by neutron diffraction studies, it is reported to be 3.73. The N Te-O values calculated from neutron diffraction studies show good agreement with the results from Raman spectroscopy [2].…”

“…The spectra show the four broad bands at ~ 466, 663, 806 and 908 cm -1 . The band centered at 466 cm -1 is due to bending vibration modes of Te-O-Te linkages in TeO 4 tbp units [2].…”

“…TeO 2 has two crystalline phases, namely -TeO 2 (paratellurite) and -TeO 2 (tellurite) with tetragonal and orthorhombic structures respectively.The structure of -TeO 2 consists of a three-dimensional (3D) network built up from TeO 4 subunits, with each oxygen atom shared by two units, bonded in the equatorial position to one tellurium atom and in the axial positionto another tellurium atom. On slowly heating the pure glass, -TeO 2 phase is formed which gets modified to -TeO 2 with further thermal energy while the -TeO 2 phase is not observed during this process [2]. Earlier, pure tellurite glasses were formed at very high quenching rates of ~10 5 Ks -1 by twin roller quench technique but recently it has been synthesized in bulk using intermittent quenching technique [3].…”

Physical and optical properties of CdO B2O3 Bi2O3 TeO2 glass system

“…The relation between (αћω) 1/2 and ћω for all the studied samples nonlinear waveguide devices useful for optical signal processing [10]. The third order nonlinear susceptibility in esu units is calculated by the following relation [12], χ (3) = ((n 2 -1)/ 4π) 4 x 10 -10 From Table 4, it was found that the values of third order nonlinear optical susceptibility increase by increasing CdO content .This due to increasing values of the refractive index for all the studied samples.…”

“…Tellurium oxide glasses have attracted much care because of their optical requests due to their high linear and nonlinear refractive indices and high nonlinear optical susceptibility [1]. The structural, optical and electrical properties of these glasses have been studied [2][3][4][5]. Borate glasses have been given attention due to their wide range of applications in the fields of linear and nonlinear optics and related techniques [6].…”