On the existence of the Brillouin peaks in a simple dilute dissipative gas
DOI:
https://doi.org/10.31349/RevMexFis.68.041701Keywords:
Rayleigh Brillouin spectrum, Kinetic theoryAbstract
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 uctuation 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.
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Copyright (c) 2022 Alfredo Sandoval-Villalbazo, Alma Rocío Sagaceta-Mejía, José Humberto Mondragón-Suárez
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