<title>Transients in media with near dipole-dipole interatomic interaction</title>

<title>Optical transparency modes in anisotropic media</title>

“…Since negative birefringence reduces the effective anisotropy, the modes of transparency characterized by the strong excitation are more expressed. Equations (20)(21)(22)(23) corresponding to these modes remain valid. Note that condition Aτ 2 p ≪ 1 imposes a constraint on parameter τ p and, therefore, on detuning (see (20)).…”

“…It is seen from formula (21), that F < 0 for negative ∆; i.e., the pulses that cause the largest change of the level population can be positively detuned only. This agrees with the fact that D does not change sign in the case under study, and, therefore, the extraordinary component induces a dynamic red shift.…”

“…It exists when detuning of the pulse satisfy condition BW ∞ /∆ > 0. The rational form of the decay of the free polarization for such the media was revealed in 21 . It is interesting, that the largest excitation of the medium will be caused in accordance with formula (11) by the pulses having constant detuning: ∆ = BW ∞ /2 (see Fig.…”