Rayleigh-Brillouin scattering of carbon dioxide

Abstract

The spectral lineshape of spontaneous Rayleigh-Brillouin scattering in CO2 is studied in a range of pressures. The spectrum is influenced by the bulk viscosity, which is a relaxation phenomenon involving the internal degrees of freedom of the molecule. The associated relaxation rates can be compared to the frequency shift of the scattered light, which demands precise measurements of the spectral lineshape. We find the value of the bulk viscosity around 5.7 X 10^{-6} kg/(ms) for the range of pressures p= 2-4 bar and for conditions of room temperature.

References in corpus (2)

• Temperature-dependent bulk viscosity of nitrogen gas determined from spontaneous Rayleigh-Brillouin scattering
• A Rayleigh-Brillouin scattering spectrometer for ultraviolet wavelengths

Cited by in corpus (5)

• A systematic study of Rayleigh-Brillouin scattering in air, N2 and O2 gases
• Bulk viscosity of CO${}_2$ from Rayleigh-Brillouin lightscattering spectroscopy at 532 nm
• Rayleigh-Brillouin scattering in SF${}_6$ in the kinetic regime
• Rayleigh-Brillouin light scattering spectroscopy of air; experiment, predictive model and dimensionless scaling
• Rayleigh-Brillouin scattering in binary mixtures of disparate-mass constituents: SF${}_6-$He, SF${}_6-$D${}_2$ and SF${}_6-$H${}_2$