Zhao Ke et al 2006 Chinese Phys. 15 2338 doi:10.1088/1009-1963/15/10/024
Zhao Ke, Li Hong-Yu, Liu Ji-Cai and Wang Chuan-Kui
Show affiliationsIn 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.
42.60.Jf Beam characteristics: profile, intensity, and power; spatial pattern formation
42.65.Jx Beam trapping, self-focusing and defocusing; self-phase modulation
03.50.De Classical electromagnetism, Maxwell equations
42.65.Re Ultrafast processes; optical pulse generation and pulse compression
Issue 10 (October 2006)
Received 6 July 2005, in final form 30 March 2006
Zhao Ke et al 2006 Chinese Phys. 15 2338
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