Abstract

A mathematical formalism based on the classical theory of Brillouin scattering with non-monochromatic incident radiation is developed and used to account for the effect of radiation linewidths on the spectral resolution of the pump-probe technique (PPT) in application to the Brillouin spectroscopy. Theoretical findings are verified by comparison with corresponding experimental PPT data from an earlier study on ${\mathrm{CS}}_2$, a paradigm of SBS, which is well documented for its acousto-optical properties.

© 2019 Optical Society of America

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