The newly built ultraviolet Raman–Brillouin spectrometer at the Università di L’Aquila is described. We have used it to perform accurate ultraviolet and visible Brillouin spectra of glass-forming glycerol. Data with high contrast and high dynamic range in the unexplored region of wave vectors from 40 up to about 70 μm-1 have been obtained for the first time. The spectra are analysed in terms of generalized hydrodynamics with a frequency-dependent viscosity. © 2004 Taylor & Francis Group, LLC. All rights reserved.

Ultraviolet brillouin spectroscopy of glass-forming glycerol / P. Benassi, A. Cunsolo, R. Eramo, A. Giugni, M. Nardone, M. Sampoli. - In: PHILOSOPHICAL MAGAZINE. - ISSN 1478-6435. - 84:13-16(2004), pp. 1413-1422. ((Intervento presentato al 9. convegno International Workshop on Disordered Systems tenutosi a Molveno Andalo nel 2003 [10.1080/14786430310001644161].

Ultraviolet brillouin spectroscopy of glass-forming glycerol

A. Giugni;
2004

Abstract

The newly built ultraviolet Raman–Brillouin spectrometer at the Università di L’Aquila is described. We have used it to perform accurate ultraviolet and visible Brillouin spectra of glass-forming glycerol. Data with high contrast and high dynamic range in the unexplored region of wave vectors from 40 up to about 70 μm-1 have been obtained for the first time. The spectra are analysed in terms of generalized hydrodynamics with a frequency-dependent viscosity. © 2004 Taylor & Francis Group, LLC. All rights reserved.
Frequency propagating modes; structural relaxation; light-scattering; dynamics; liquids; neutron
Settore FIS/03 - Fisica della Materia
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/826126
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