KRYLOV, V.V., 1993. On nonlinear parametric amplification of Rayleigh waves. Physics Letters A, 173 (2), pp.209-213.
The phenomenon of parametric amplification of a weak Rayleigh surface acoustic wave of frequency ω by a strong pump Rayleigh wave of frequency 2ω is considered using the system of nonlinear evolution equations derived by Parker [Int. J. Eng. Sci. 26 (1988) 59] and modified to take into account the usual material dissipation and additional selective damping of certain wave harmonics. It is shown that introducing selective dissipation on both the third and fourth harmonics results in an essential increase of parametric amplification.
This is the author’s version of a work that was accepted for publication in Physics Letters A. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published at: http://dx.doi.org/10.1016/0375-9601(93)90188-6