Altered branching ratios and relaxation oscillations in superfluorescent cascades
William A. Molander, Carlos R. Stroud · Journal of Physics B Atomic and Molecular Physics · 1982
A non-linear rate equation describing superfluorescence in many-level systems is presented. It is shown that when a large atomic population is excited into Rydberg levels the cascade back to lower levels by cooperative spontaneous emission leads to a number of new effects including 'trapping' of population in excited states, alteration of branching ratios, truncation of superfluorescent pulses and multiple pulsing of a single transaction.