Breather-like pulses in a medium with the permanent dipole moment

Abstract

The solutions of the reduced Maxwell-Bloch equations for an anisotropic two-level medium, which describe the propagation of electromagnetic pulses having a duration from a few field oscillations, are studied. An influence of the permanent dipole moment of the quantum transition on dynamics of the pulses and their spectrum is considered.Comment: LaTeX, 9 pages, 6 figure