极化聚合物薄膜中二阶非线性系数的测定和稳定性研究  

Evaluation of the second harmonic coefficient and stablility investigation in poled polymer films

作　　者：沈玉全[1] 傅兴发 邱玲[1] 沈继峰 王文澄 刘丽英 

机构地区：[1]中国科学院感光化学研究所,复旦大学物理系

出　　处：《光学学报》1994年第1期1-7,共7页Acta Optica Sinica

摘　　要：详细介绍了极化聚合物薄膜中二阶非线性系数的测定方法，讨论了在这种体系中进行时间稳定性研究的有关问题．估计了ＤＡＮＳ掺杂的这种聚合物中从取向状态到无序分布的表观活化能，讨论了最优入射角θ．在弛豫过程中的变化幅度与材料的时间稳定性的关系．A detailed procedure for evaluation of second harmonic coefficient d33 in Poled polymer films was given and temporal stability investigstion in such system wasdiscussed. The apparent energy of activation for relaxation from oriented to random state in DANS doped polymer was estimated. A concept of optimum incidence angle θm. was introduced and the possible connection between the magnitude variation in θm during therelaxation process and the temporal stability is also dicussed.

关 键 词：稳定性 极化聚合物 非线性材料 

分 类 号：TN204[电子电信—物理电子学]