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Journal of Physics A Mathematical and General

Spontaneous and stimulated emission from atoms prepared in the super-radiant state

Miguel Orszag

Published Sep 1, 1977• 1 citation
Publisher

Abstract

Spontaneous and stimulated emission from atoms prepared in the super-radiant state are studied, in the non-resonant case. An exact equation of motion for R 3 and approximate solutions are obtained.
DOI
10.1088/0305-4470/10/9/004

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Spontaneous emission from two non-identical two-level atoms is examined from the viewpoint of quantum beats and super-radiant effects. Our analytical solution, illustrated graphically, shows that the total radiation rate exhibits temporal sinusoidal modulation (beats). The beats result from the fact that the atoms have different transition frequencies and different natural linewidths. For small interatomic separations, the total radiation rate is greater than its initial value. This ‘super-radiant’ property is absent in the case of noninteracting atoms, as well as for two identical atoms. In the case when the atoms are separated by distances much smaller than the resonant wavelength, the population trapping effect can take place in such a system.