Raman Spectra in Inorganic Chemistry.

In situ study at high pressure and temperature of the environment of water in hydrous Na and Ca aluminosilicate melts and coexisting aqueous fluids

“…In the 3000–4000 cm −1 frequency range, asymmetric broad peaks with intensity maxima centered between ~3535 and ~3575 cm −1 were observed in the Raman spectra of all melts and fluids (Figure ). Those signals are assigned to ν(O‐H) vibrations in the melts and fluids [ Hibben , , ; Scholze , ; Walrafen , ]. The ν(O‐H) signals in the Raman spectra of the melts are more asymmetric than those in the Raman spectra of the fluids with which they were in equilibrium (Figure ).…”

Manifestations of newχ(3)-nonlinear laser interactions in calcite (CaCO3) single crystals under one-micron picosecond pumping: more than two-octave spanned Stokes and anti-Stokes multi-wavelength comb and third harmonic generation via cascaded parametric lasing

“…In the following, the different properties of Raman scattering in these crystals, and in particular in calcite, have been extensively studied by many researchers (see, e.g. [74][75][76][77][78][79][80][81], other references to earlier investigations of calcite Raman spectra are given by [82,83]). The observation of SRS generation in calcite in 1963 [7,8] stimulated new and more detailed investigations of different features of the Raman effect in this crystal, namely the depolarization properties and dephasing time of the totally symmetric A 1g vibration mode (see, e.g.…”