Oxide glasses vibrational spectra

As shown in Fig. 8, the vibrational bands are clearly resolved in the photoluminescence spectrum of vanadium oxide supported on Vycor glass 33, 34, 36-38). The vibrational separation of about 1040 cm is in good agreement with the energy of the V=0 stretching vibration of the ground state of the vanadyl group of the oxide as measured by IR or Raman spectroscopies. 

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