Some questions of theory of the acoustic laser

摘要

A theoretical scheme of acoustic analog of laser (saser) was suggested and investigated numerically with the help of the computer simulation procedure. The suggested scheme for the saser is analogous to a well-known scheme of a free electron laser (FEL) where an electromagnetic emission is created by the self-synchronized electron beam moving through magnetic periodic systems. A computational model of the saser was described by a system of three nonlinear differential equations with partial derivatives. The simulation was performed in a wide range of physical parameters for active media and resonator. The obtained results are in good agreement with the results known for FEL 25 refs., 9 figs.