Amplification by an optically dense resonant two-level system embedded in a dielectric medium

Abstract

In the superradiant regime and for a range of the slab's length, the atomic polarizability of an inverted optically dense resonant two-level system embedded in a dielectric medium is, in the symmetric sectors, an eigenfunction of the spatial inversion with respect to the center of the slab in the same manner as if the resonant atoms were in vacuum, albeit, the boundaries and the extents of the different symmetric regions and asymmetric domains are functions of the dielectric index of refraction. Furthermore, it is shown that the absence of the local field correction can substantially suppress the superradiant amplification in the asymmetric transition domains.