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

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

Optical Solitons in an Anisotropic Medium with Arbitrary Dipole Moments

We find the Lax pair for a system of reduced Maxwell-Bloch equations that describes the propagation of two-component extremely short electromagnetic pulses through the medium containing two-level quantum particles with arbitrary dipole moments.Comment: 5 pages, International Conference on Coherent and Nonlinear Optics (ICONO 2007

Dynamics of two-component electromagnetic and acoustic extremely short pulses

The distinctive features of passing the two-component extremely short pulses through the nonlinear media are discussed. The equations considered describe the propagation in the two-level anisotropic medium of the electromagnetic pulses consisting of ordinary and extraordinary components and an evolution of the transverse-longitudinal acoustic pulses in a crystal containing the paramagnetic impurities with effective spin S=1/2. The solutions decreasing exponentially and algebraically are studied.Comment: LaTeX, 11 pages, 6 figure

Optical transparency modes in anisotropic media

The modes of nonlinear propagation of the two-component electromagnetic pulses through optically uniaxial media containing resonant particles are studied. The features of their manifestation in the "dense" media and in the media with expressed positive and negative birefringences are discussed. It is shown that exponentially and rationally decreasing solutions of the system of material and wave equations allow us also to describe the propagation of the self-induced transparency pulses in isotropic media in the case, when the direct electric dipole-dipole interaction between the resonant particles is taken into account.Comment: LaTeX, 11 pages, 4 figures, International Conference on Coherent and Nonlinear Optics (ICONO 2005