Abstract
Rayleigh–Brillouin spectra for heated nitrogen gas were measured by imaging the output of a Fabry–Perot interferometer onto a CCD array. The spectra were compared with the theoretical 6-moment model of Rayleigh–Brillouin scattering convolved with the Fabry–Perot instrument function. Estimates of the temperature and a dimensionless parameter proportional to the number density of the gas as functions of position in the laser beam were calculated by least-squares deviation fits between theory and experiment.
© 1992 Optical Society of America
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