Femtosecond Studies on Third-Order Optical Nonlinearities of Polyanilines
WANG Hui, LAI Tianshu, LIN Weizhu, MO Dang, OUYANG Meng* , GONG Kecheng*
Department of Physics, Zhongshan University, Guangzhou 510275
* Department of Polymer, South China University of Technology, Guangzhou 510641
Femtosecond Studies on Third-Order Optical Nonlinearities of Polyanilines
WANG Hui;LAI Tianshu;LIN Weizhu;MO Dang;OUYANG Meng* ;GONG Kecheng*
Department of Physics, Zhongshan University, Guangzhou 510275
* Department of Polymer, South China University of Technology, Guangzhou 510641
关键词 ：
42.65.-k ,
42.65.Re ,
42.70.-a
Abstract ： 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.
Key words ：
42.65.-k
42.65.Re
42.70.-a
出版日期: 1994-08-01
:
42.65.-k
(Nonlinear optics)
42.65.Re
(Ultrafast processes; optical pulse generation and pulse compression)
42.70.-a
(Optical materials)
引用本文:
WANG Hui;LAI Tianshu;LIN Weizhu;MO Dang;OUYANG Meng*;GONG Kecheng*. Femtosecond Studies on Third-Order Optical Nonlinearities of Polyanilines[J]. 中国物理快报, 1994, 11(8): 491-493.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y1994/V11/I8/491
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1994, Vol. 11 
