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Brillouin scattering in liquids
Proceedings of the IEEE, 1965The development of monochromatic, intense, and highly directional laser light sources has made it possible to measure accurately the velocity, the frequency, and the lifetimes of thermally excited hypersonic sound waves. The technique employed is to study the spectrum of the light scattered from the thermally generated sound waves in the medium.
G. Benedek, T. Greytak
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Brillouin scattering in Hg2Cl2
Solid State Communications, 1977Abstract Hg2Cl2 undergoes a second order phase transition around 185 K. All the elastic constants have been measured above (tetragonal phase) and below (orthorhombic phase) the transition point. The results support the hypothesis that the transition is induced by the condensation of a transversal acoustical mode at an X point of the first Brillouin ...
Cao Xuan An, G. Hauret, J.P. Chapelle
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Journal of the Physical Society of Japan, 1975
The elastic constants of GaSe have been determined by studying Brillouin scattering for various crystal orientations. Depending on the orientation, the spectra exhibit one or two components, which are assigned to specific modes of vibration. From the observed Brillouin frequency shifts, the elastic constants of GaSe are evaluated with a least-square ...
Minoru Tanaka +2 more
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The elastic constants of GaSe have been determined by studying Brillouin scattering for various crystal orientations. Depending on the orientation, the spectra exhibit one or two components, which are assigned to specific modes of vibration. From the observed Brillouin frequency shifts, the elastic constants of GaSe are evaluated with a least-square ...
Minoru Tanaka +2 more
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Neutron News, 1990
Abstract For several years, an international group of scientists has been developing instrumentation and gathering experience regarding neutron Brillouin scattering. The requirements are neutrons of relatively high energy, small scattering angles, and high resolution in order to obtain data at small momentum transfer and high energy transfer.
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Abstract For several years, an international group of scientists has been developing instrumentation and gathering experience regarding neutron Brillouin scattering. The requirements are neutrons of relatively high energy, small scattering angles, and high resolution in order to obtain data at small momentum transfer and high energy transfer.
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Brillouin Scattering Spectrometry
1979Light is scattered from homogeneous materials due to microscopic local variations in the dielectric constant, and hence index of refraction within the bulk of the material. If these variations are the result of time dependent fluctuations, the scattering will generally be inelastic due to energy transfer between the incident photons and the medium ...
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Brillouin scattering spectrum for liquid detection and applications in oceanography
Opto-Electronic Advances, 2023Yuanqing Wang, Yangrui Xu, Kun Liang
exaly
1981
During the past 20 years, since the invention of the laser, light scattering has become an increasingly powerful means of measuring the spectra of systems in thermal equilibrium. Sergio Porto played a leading role in the development of techniques to take maximum advantage of the properties of laser light in its application to light scattering, and he ...
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During the past 20 years, since the invention of the laser, light scattering has become an increasingly powerful means of measuring the spectra of systems in thermal equilibrium. Sergio Porto played a leading role in the development of techniques to take maximum advantage of the properties of laser light in its application to light scattering, and he ...
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Spontaneous Brillouin Scattering in Gases
Applied Optics, 1966D P, Eastman, T A, Wiggins, D H, Rank
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