%0 Journal Article
%T Resonant propagation of femtosecond laser pulse in DBASVP molecule:one-dimensional asymmetric organic molecule<br>Resonant propagation of femtosecond laser pulse in DBASVP molecule：one-dimensional asymmetric organic molecule
%A Zhao Ke
%A Liu Ji-Cai
%A Wang Chuan-Kui
%A Luo Yi
%A <br>赵　珂
%A 刘纪彩
%A 王传奎
%A 罗　毅
%J 中国物理 B
%D 2005
%I 
%X We have investigated the resonant propagation of femtosecond laser pulse in 4-trans-p-(N, N-Di-n-butylamino)-p-stilbenyl vinyl] pyridine medium with permanent dipole moments. The electronic structures and parameters for the compound have been calculated by using density functional theory. In the optical regime, there is one charge-transfer state, and the molecule can thus be simplified as a two-level system. Both the one- and two-photon transitions occur between the ground and charge-transfer states. The numerical results show that the permanent dipole moments have an obvious effect on the propagation of the ultrashort pulse laser. The ideal self-induced transparency disappears for 2$\pi$ pulse, and second harmonic spectral components occur significantly due to the two-photon absorption process. For the 6\pi pulse, continuum frequency generation is produced and a shorter duration pulse in time domain with 465 as is obtained.
%K Maxwell--Bloch equations
%K Rabi flopping
%K two-photon absorption<br>激光脉冲
%K Maxwell-Bloch方程
%K Rabi贬调
%K 两相吸收
%K 电磁传播
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=CD8D6A6897B9334F09D8D1648C376FB4&aid=B0C6B9E2F1442A88FA0087318C06BE9F&yid=2DD7160C83D0ACED&vid=F3583C8E78166B9E&iid=F3090AE9B60B7ED1&sid=9EAD63ADE6B277ED&eid=EA357AD73C8E13BC&journal_id=1009-1963&journal_name=中国物理&referenced_num=0&reference_num=20