Results 121 to 130 of about 79,181 (180)

Brillouin Scattering from Gels

MRS Proceedings, 1991
AbstractWe have investigated the question of heterogeneity in gels using Brillouin scattering, depolarized Rayleigh scattering and dynamic light scattering measurements on methylmethacrylate (MMA) gels crosslinked with varying amount of ethylene-dimethacrylate (EDMA).
MALLAMACE F   +5 more
openaire   +3 more sources

Coherent Rayleigh-Brillouin Scattering

Physical Review Letters, 2002
Coherent Rayleigh-Brillouin scattering in gases has been studied experimentally for the first time in the kinetic regime and shown to give line shapes that differ significantly from the spontaneous Rayleigh-Brillouin scattering. A kinetic model was developed to obtain an analytic solution of the line shape for monatomic gases, and good agreement with ...
Xingguo, Pan   +2 more
openaire   +2 more sources

Brillouin Scattering in Sodium Nitrite

Journal of the Physical Society of Japan, 1974
The Brillouin scattering spectra in NaNO 2 have been studied using a Fabry-Perot interferometer. The observed Brillouin shifts for eighteen acoustic phonons in nine scattering geometries have been assigned to specific modes of vibration. The determined values of nine elastic constants in units of 10 10 dyn/cm 2 are C 11 =31.7, C 22 =58.2, C 33 =66.0, C
H. Shimizu   +3 more
openaire   +1 more source

Spontaneous Brillouin scattering in a microdroplet

Physical Review A, 1990
Spontaneous Brillouin scattering in a micrometer-sized liquid droplet is analyzed from first principles, using the spherical-wave normal-mode basis. Instead of the conservation of linear momentum, this interaction is governed by a selection rule due to the conservation of angular momentum. The Brillouin spectrum is then calculated, both for observation
, Ching, , Leung, , Young
openaire   +2 more sources

Waveguided Raman and Brillouin scattering

SPIE Proceedings, 2000
Raman and Brillouin spectroscopy in planar waveguides can be performed by coupling the laser beam to the waveguide with a prism and by collecting the scattered light from the front surface. Brillouin spectra, which are different for excitation in the different modes of the waveguides, can be accounted for by a model that considers the space ...
Montagna, Maurizio   +6 more
openaire   +2 more sources

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