中国物理B ›› 2006, Vol. 15 ›› Issue (10): 2338-2342.doi: 10.1088/1009-1963/15/10/024
赵 珂, 李洪玉, 刘纪彩, 王传奎
Zhao Ke(赵珂), Li Hong-Yu(李洪玉), Liu Ji-Cai(刘纪彩), and Wang Chuan-Kui(王传奎)†
摘要: In this paper the phase-dependent features of ultrashort laser pulse resonant propagation in a two-level dipolar molecule are demonstrated by solving full Maxwell--Bloch equations. The electronic properties of dipolar molecule 4-trans-[p-(N, N-Di-n-butylamino)-p -stilbenylvinyl] pyridine (DBASVP) molecule, one-dimensional asymmetric organic molecule, is calculated by density functional theory at \textit{ab initio} level. The numerical results show that the carrier propagation and the spectrum evolution of the pulse are sensitive to its initial phase and the phase sensitivity is more obvious for larger area pulse. The phase-dependent feature is more evident in dipolar molecule because the permanent dipole moment makes the nonlinear effects stronger.
中图分类号: (Beam characteristics: profile, intensity, and power; spatial pattern formation)