Effect of the ratio of transition dipole moments on few-cycle pulse propagation  

作　　者：谭霞 杨艳玲 仝殿民 樊锡君 

机构地区：[1]College of Physics and Electronics,Shandong Normal University

出　　处：《Chinese Optics Letters》2008年第8期607-610,共4页中国光学快报（英文版）

基　　金：the National Basic Research Program of China (No.2006CB806003);the National Natural Science Foundation of China (No.10675076);the Natural Science Foundation of Shandong Province (No.Y2006A21);State Key Laboratory of High Field Laser Physics,Shanghai Institute of Optics;Fine Mechanics,Chinese Academy of Sciences.

摘　　要：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.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.

关 键 词：Electric dipole moments Maxwell equations Molecular vibrations Wave equations 

分 类 号：TN24[电子电信—物理电子学] O562.4[理学—原子与分子物理]