Generation of High-Frequency Radiation in the Conditions of Superradiance of Particles with a Constant Dipole Moment

A localized ensemble of identical particles with a constant dipole moment generates during superradiance a coherent pulse of low-frequency radiation, the pulse shape depending significantly on the number of particles in the ensemble. In particular, low-frequency radiation pulse is transformed from one-hump to two-hump shape in a narrow range of variation of ensemble parameters.