Title: Thermoelastic Model for Impulsive Stimulated Scattering Monitoring the Evolution from Capillary to Rayleigh TypeWave Propagation on the Surface of Viscoelastic Materials Throughout the Glass Transition
Authors: Sermeus, Jan ×
Matsuda, Osamu
Salenbien, Robbe
Verstraeten, Bert
Fivez, Jan
Glorieux, Christ #
Issue Date: Dec-2012
Publisher: Kluwer Academic-Plenum-Human Sciences Press
Series Title: International Journal of Thermophysics vol:33 issue:10-11 pages:2145-2158
Conference: ICPPP edition:16 location:Merida (Mexico) date:27 nov-1 dec 2011
Abstract: In recent decades, the impulsive stimulated scattering (ISS) method,
which is based on photothermal and photoacoustic phenomena, has been successfully
used to simultaneously investigate the thermal and elastic properties in a four-wave
mixing configuration, both in transmission in semitransparent materials and on reflecting
surfaces of solids. In this report, an extension of the technique is proposed to study
a laser-induced thermoelastic response at the free surface of glass-forming liquids.
The employed all-optical configuration allows extraction of information about the
acoustic shear modulus in the MHz frequency range, and hence is complementary to
the classical ISS configuration in the transmission mode, which is suitable to study the
relaxation of the longitudinal acoustic modulus, and to another earlier reported ISS
configuration, which is exciting and probing laser-induced thermoelastic phenomena
at a liquid–solid interface. A theoretical model is presented and numerically illustrated
for the glass transition of glycerol, and experimentally validated for water at
room temperature.
ISSN: 0195-928X
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Soft Matter and Biophysics
Research Centre for Mathematical Economics, Econometrics and Statistics, Campus Brussels (-)
Faculty of Economics and Business (FEB) - miscellaneous
× corresponding author
# (joint) last author

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