ABSTRACT
This chapter describes infrared (IR) and Raman spectroscopy, two complementary, nondestructive characterization techniques, both of which provide extensive information about the structure and vibrational properties of tellurite glasses. The description begins with brief background information on, and experimental procedures for, both methods. Collection of these data for tellurite glasses in their pure, binary, and ternary forms is nearly complete. IR spectral data for oxyhalide, chalcogenide, and chalcogenide-halide glasses are now available. The basis for quantitative interpretation of absorption bands in the IR spectra is provided, using values of the stretching force constants and the reduced mass of vibrating cations-anions. Such interpretation shows that coordination numbers determine the primary forms of these spectra. Raman spectral data of tellurite glasses and glass-ceramics are also collected and summarized. Suggestions for physical correlations are made.
