%0 Journal Article
%T Coherent coupling between vibrational modes of Cben H bonds at different positions studied by femtosecond time-resolved coherent anti-Stokes Raman scattering<br>
%A Du Xin
%A He Xing
%A Liu Yu-Qiang
%A Wang Ying-Hui
%A Yang Yan-Qiang
%A <br>
%J 中国物理 B
%D 2012
%I 
%X We performed femtosecond time-resolved coherent anti-Stokes Raman scattering (fs-CARS) measurements on liquid toluene and PVK film. For both samples, we selectively excited the CH stretching vibrational modes and observed the expected quantum beat signals. The frequency of the well-defined beats is in good agreement with the energy difference between the two simultaneously excited modes, which demonstrates that a coherent coupling between the vibrational modes of the C-H chemical bonds exists at the different positions of the molecules. The dephasing times of the excited modes are obtained simultaneously.
%K femtosecond time-resolved coherent anti-Stokes Raman scattering
%K coherent coupling
%K quantum beat<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=CD8D6A6897B9334F09D8D1648C376FB4&aid=8DDEB85749F7F529157742BDBF01761D&yid=99E9153A83D4CB11&vid=659D3B06EBF534A7&iid=38B194292C032A66&sid=8C539E1A9582E287&journal_id=1009-1963&journal_name=中国物理&referenced_num=0&reference_num=16