INTENSITY OF ULTRASOUND EXCITED IN STIMULATED LIGHT SCATTERING BY OPTICALLY-CONTROLLED CHEMICAL REACTIONS.

Equations are obtained for the ultrasound intensity and for the number of phonons per scattered light quantum in stimulated scattering in thermodynamically nonequilibrium media when the rates of chemical reactions depend on the optical intensity. Estimates indicate that in gas mixtures such as CO//2 and n-C//3F//7I at a total pressure of 0. 5 atm, in which exothermic reactions between idoine atoms and organofluoric radicals occur as a result of photolysis of n-C//3F//7I, light having an intensity of approximately 10**5 w/cm**2, resonantly interacting with iodine atoms, can excite ultrasound having an intensity of tenths of a watt per square centimeter at a frequency of approximately 1 MHz. In this case approximately 10**4 phonons are produced per scattered photon.