Phys. Rev. A 71, 045801 (2005) [2 pages]Power spectrum of coherent Rayleigh-Brillouin scattering in carbon dioxideReceived 18 June 2004; published 4 April 2005 We show in this note that, in the coherent Rayleigh-Brillouin scattering (CRBS) experiment [ X. Pan, M. N. Shneider and R. B. Miles Phys. Rev. A 69 033814 (2004)], the vibrational modes of the CO2 molecules are frozen. When the gas dynamic parameters are chosen accordingly, the model predicts a line shape that matches with the experimental data. Fitting the theoretical curve to the CRBS data represents a method to measure the speed of high-frequency sound, bulk viscosity, and the rotational relaxation time of molecular gases. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.71.045801
DOI:
10.1103/PhysRevA.71.045801
PACS:
42.50.Vk, 32.80.Lg, 47.60.+i, 51.10.+y
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