Coherent states in brillouin light scattering

Abstract

The present article describes inelastic light scattering or the theory of photon acoustic- phonon interactions to which the coherent state formalism can be applied; it belongs partly to quantum acoustics. Such quantum calculations lead to the same results as the classical ones, and what is important, they are not in full agreement with the results of measurements. The article provides some formulae useful for comparison of the optical signals intensity in Brillouin light scattering experiments.