Application of the constant stoichiometry grouping concept to the Raman spectra of Pb(PO3)2-TeO2 glasses

Structural characterization of a new fluorophosphotellurite glass system

“…Beyond this benefit, the combination of several network formers usually offers the possibility of fine-tuning physical property combinations to specific technological demands. In this regard, phosphotellurite glasses have recently emerged as very promising infrared laser host materials, [13][14][15][16][17][18][19][20][21] even though the improvement in stability and mechanical properties is bought at an expense of decreases in emission lifetimes and intensities. Another significant drawback of phosphotellurite glasses obtained by the conventional melt-quenching method is their relatively high content of hydroxyl groups, requiring additional measures for obtaining "dry" glasses.…”

Coordination state of aluminum and boron in barium aluminoborate glass

“…The weight of the batch was 15 g in all experiments. The prepared homogeneous melt was poured onto a steel mold and quenched to room tem perature whereupon the glass samples were annealed at temperatures 10-15°C lower than the respective glass transition temperatures [7,8] for two hours and were again slowly cooled to room temperature. The compositions of the synthesized glass and their legends are given in the table.…”

Mid-Range Structure of Niobium–Sodium–Phosphate Electro-Optic Glasses

“…To reveal the PSCs, these Raman spectra were processed by the Wallace–Katz matrix technique . In brief, this procedure consists of finding the minimum number of linearly independent rows of a matrix comprising the set of spectral intensities at fixed frequencies for each experimental Raman spectrum. These frequencies are chosen in the wavelength regions in which the glass spectra demonstrate the greatest alterations with changing glass composition.…”