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Revista mexicana de física
Print version ISSN 0035-001X
Abstract
SANDOVAL-VILLALBAZO, A.; SAGACETA-MEJIA, A. R. and MONDRAGON-SUAREZ, J. H.. On the existence of the Brillouin peaks in a simple dilute dissipative gas. Rev. mex. fis. [online]. 2022, vol.68, n.4, 041701. Epub May 19, 2023. ISSN 0035-001X. https://doi.org/10.31349/revmexfis.68.041701.
Light scattering due to the interaction of photons and acoustic waves present in a dilute inert gas is analyzed through the use of irreversible thermodynamics. The dispersion relation, which governs the dynamics of the density fluctuation of the gas allows the establishment of a simple criterion for the corresponding Rayleigh-Brillouin spectrum to be observed. The criterion here proposed allows a clear physical interpretation and suggests generalizations for other interesting physical scenarios.
Keywords : Kinetic theory; Rayleigh-Brillouin.