Nonlinear Optical Properties of Some New Conjugated Copolymers
YANG Qi-guang, SI Jin-hai, LIU Xu-chun, XU Gang, YE Pei-xian, LEI Zi-qiang1, ZHAN Xiao-wei1, YANG Mu-jie1
Institute of Physics & Center for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100080
1Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027
Nonlinear Optical Properties of Some New Conjugated Copolymers
YANG Qi-guang;SI Jin-hai;LIU Xu-chun;XU Gang;YE Pei-xian;LEI Zi-qiang1;ZHAN Xiao-wei1;YANG Mu-jie1
Institute of Physics & Center for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100080
1Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027
Abstract： The ground- and the excited-state nonlinearities of two new copolymers are investigated in nanosecond scale at 1064 nm. It is found that the excited-state susceptibility is dramatically larger than the corresponding ground-state susceptibility for each sample. The experimental results also give evidence that superlattice structure of the copolymers can enhance, especially for the excited state, the molecular hyperpolarizabilities significantly. This enhancement may be attributed to the confinement effect of the pump-induced carriers.
YANG Qi-guang;SI Jin-hai;LIU Xu-chun;XU Gang;YE Pei-xian;LEI Zi-qiang;ZHAN Xiao-wei;YANG Mu-jie. Nonlinear Optical Properties of Some New Conjugated Copolymers[J]. 中国物理快报, 1998, 15(3): 189-191.
YANG Qi-guang, SI Jin-hai, LIU Xu-chun, XU Gang, YE Pei-xian, LEI Zi-qiang, ZHAN Xiao-wei, YANG Mu-jie. Nonlinear Optical Properties of Some New Conjugated Copolymers. Chin. Phys. Lett., 1998, 15(3): 189-191.
1998, Vol. 15 
