SUPERRADIANCE IN LAYERS OF EXCITED QUANTUM AND NONISOCHRONOUS CLASSICAL OSCILLATORS

The bidirectional superradiance of extend layers of quantum and nonisochronous classical oscillators is investigated theoretically. At the linear stage of superradiance spatial structures and pins of the eigenmodes of the system are found. In the nonlinear stage the structure of the excited fields is complicated and differs from the structure of eigenmodes. The time dependence of the radiation power is determined. Macroscopic characteristics (field, polarization, inversion) in superradiative process in quantum and classical oscillators are shown to behave similarly. The cyclotron superradiance power is estimated.