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B. Hehlen and G. Simon The vibrations of vitreous silica observed in hyper-Raman scattering Journal of Raman Spectroscopy 43

Article first published online: 15 JUL 2012 | DOI: 10.1002/jrs.4110

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Hyper-Raman scattering (HRS) is performed in vitreous silica and compared to Raman and infrared data. The specificity of the HRS selection rules allows to easily separate transverse and longitudinal components of the polar modes and provides new information on the vibrations, as for example their spatial extension. The nature of the modes underlying the boson peak at low frequency is also discussed.

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