Weak coupling of internal degrees of freedom of molecules to the translational degrees of freedom of a fluid results in additional modes of motion for density fluctuations. These new modes affect the spectral distribution of light scattered by density fluctuations so that the Landau-Placzek ratio is not satisfied. The case of thermal relaxation with a single relaxation time is worked out in detail. For-mulas for the spectral distribution of the scattered light, for the ratio of the intensities of the central (Rayleigh) to the Brillouin components and for the phonon velocity are derived and applied to carbon disulfide and carbon tetrachloride. The data for carbon tetrachloride are shown to be inconsistent with the single relaxation time mode...
The spectral line shape of spontaneous Rayleigh–Brillouin scattering in CO2 is studied in a range of...
Rayleigh-Brillouin spectral profiles are measured with a laser-based scatterometry setup for a 90° s...
We study the interaction of the relaxation processes with the density fluctuations by molecular dyna...
Nous avons mesuré les spectres de diffusion Brillouin de trois liquides polyatomiques (Dichlorométha...
We have performed Rayleigh-Brillouin experiments to get information on the relaxation of the interna...
We have performed Rayleigh-Brillouin experiments to get information on the relaxation of the interna...
Isotropic Brillouin spectra of the two chemically similar van der Waals glass forming liquids, 1,1('...
The spectral distribution of light scattered by a ternary fluid mixture containing two chemically re...
The spectral distribution of light scattered by microscopic thermal fluctuations in binary mixture g...
The spectral line shape of spontaneous Rayleigh–Brillouin scattering in CO2 is studied in a range of...
The spectral line shape of spontaneous Rayleigh–Brillouin scattering in CO2 is studied in a range of...
Light scattering in a viscoelastic liquid is studied. The change from liquid to solid-like Brillouin...
The spectral line shape of spontaneous Rayleigh–Brillouin scattering in CO2 is studied in a range of...
The spectral line shape of spontaneous Rayleigh–Brillouin scattering in CO2 is studied in a range of...
The spectral line shape of spontaneous Rayleigh–Brillouin scattering in CO2 is studied in a range of...
The spectral line shape of spontaneous Rayleigh–Brillouin scattering in CO2 is studied in a range of...
Rayleigh-Brillouin spectral profiles are measured with a laser-based scatterometry setup for a 90° s...
We study the interaction of the relaxation processes with the density fluctuations by molecular dyna...
Nous avons mesuré les spectres de diffusion Brillouin de trois liquides polyatomiques (Dichlorométha...
We have performed Rayleigh-Brillouin experiments to get information on the relaxation of the interna...
We have performed Rayleigh-Brillouin experiments to get information on the relaxation of the interna...
Isotropic Brillouin spectra of the two chemically similar van der Waals glass forming liquids, 1,1('...
The spectral distribution of light scattered by a ternary fluid mixture containing two chemically re...
The spectral distribution of light scattered by microscopic thermal fluctuations in binary mixture g...
The spectral line shape of spontaneous Rayleigh–Brillouin scattering in CO2 is studied in a range of...
The spectral line shape of spontaneous Rayleigh–Brillouin scattering in CO2 is studied in a range of...
Light scattering in a viscoelastic liquid is studied. The change from liquid to solid-like Brillouin...
The spectral line shape of spontaneous Rayleigh–Brillouin scattering in CO2 is studied in a range of...
The spectral line shape of spontaneous Rayleigh–Brillouin scattering in CO2 is studied in a range of...
The spectral line shape of spontaneous Rayleigh–Brillouin scattering in CO2 is studied in a range of...
The spectral line shape of spontaneous Rayleigh–Brillouin scattering in CO2 is studied in a range of...
Rayleigh-Brillouin spectral profiles are measured with a laser-based scatterometry setup for a 90° s...
We study the interaction of the relaxation processes with the density fluctuations by molecular dyna...