THEORY OF SOUND-AMPLIFICATION BY STIMULATED-EMISSION OF RADIATION WITH CONSIDERATION FOR COAGULATION

The theoretical scheme of sound amplification by stimulated emission o f radiation (SASER) is considered. Liquid with gas bubbles serves as t he active medium. The pumping is produced by an alternating electric f ield. Phase bunching is realized by acoustic radiation forces. The inf luence of a coagulation of the bubbles on the SASER operation is consi dered. Generation conditions art: found analytically. The nonlinear st age of SASER operation and the saturation mode are investigated by num erical methods. The emission of a SASER in steady state and the direct ion pattern for a SASER are considered.