DICKE SUPERRADIATION IN THE FIELD OF A COHERENT PHONON WAVE

This paper considers the phenomenon of superradiation in impurity crys tals in the field of a coherent phonon wave excited through Raman scat tering at the moment when the initial state of an ensemble of radiator s is prepared with the use of two ultrashort laser pulses. It is demon strated that, by varying the power and the directions of propagation o f the pumping pulses, one can control parameters of superradiation gen eration and obtain information concerning the magnitude and the anisot ropy of electron-phonon interaction.