Abstract 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 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.
Received: 06 July 2005
Revised: 30 March 2006
Accepted manuscript online:
PACS:
42.60.Jf
(Beam characteristics: profile, intensity, and power; spatial pattern formation)
(Ultrafast processes; optical pulse generation and pulse compression)
Fund: Project supported by the
Shandong Natural Science Foundation (Grant No Y2004A08), University
Doctoral Subject Special
Science and Technology Foundation (Grant No
20040445001) and the Key Laboratory for High Intensity Optics of
Shanghai
Institute of Opti
Cite this article:
Zhao Ke(赵珂), Li Hong-Yu(李洪玉), Liu Ji-Cai(刘纪彩), and Wang Chuan-Kui(王传奎) Carrier--envelope phase effects for a dipolar molecule interacting with ultrashort laser pulse 2006 Chinese Physics 15 2338
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