Femtosecond Studies on Third-Order Optical Nonlinearities of Polyanilines  

作　　者：WANG Hui LAI Tianshu LIN Weizhu MO Dang OUYANG Meng GONG Kecheng 

机构地区：[1]Department of Physics,Zhongshan University,Guangzhou 510275 [2]Department of Polymer,South China University of Technology,Guangzhou 510641

出　　处：《Chinese Physics Letters》1994年第8期491-493,共3页中国物理快报（英文版）

摘　　要：The ultrafast dynamics of third order nonlinearities of polyaniline(PAn)and polyaniline doped in polymethyl mathacrylate(PAn-PMMA)films are investigated using femtosecond absorption spectroscopy.An ultrafast initial exciton deformation time of about 100fs is observed in PAn film.In PAn-PMMA film,the third-order nonlinearity results in an efficient two-photon absorption at about 2eV.

关 键 词：SPECTROSCOPY FILM ABSORPTION 

分 类 号：O63[理学—高分子化学]