Propagation of a few-cycle laser pulses in a dense V-type three-level atomic medium is investigated based on full-wave Maxwell-Bloch equations by taking the near dipole-dipole (NDD) interaction into account. We find that the ratio, γ, of the transition dipole moments has strong influence on the time evolution and split of the pulse: when γ ≤ =1, the NDD interaction delays propagation and split of the pulse, and this phenomenon is more obvious when the value of γ is smaller; when γ = √2, the NDD interaction accelerates propagation and split of the pulse.
© 2008 Chinese Optics Letters
Xia Tan, Yanling Yang, Dianmin Tong, and Xijun Fan, "Effect of the ratio of transition dipole moments on few-cycle pulse propagation," Chin. Opt. Lett. 6, 607-610 (2008)