Superradiant Effects in Photon Echo Decays -The Superradiant Echo

Transition from superradiant free-polarization decay to subradiant photon-echo

Photon echo under superradiance

Features of nonresonant excitation of superradiance and photon echo signals

Radio-frequency superradiance generated by optical pulses under photon-echo conditions

Singularities of nonresonant excitation of superradiation and photon echo signals

Time-dependent photon-echo amplitude decay induced by transit-time effects (A)