An optical article exhibits effects attributable to the nonlinear second order polarizability of electromagnetic radiation and comprises a polymer containing within its repeating units polar aligned noncentrosymmetric molecular dipoles having an electron donor moiety linked through a conjugated π bonding system to an electron acceptor moiety to permit oscillation of the molecular dipoles between a ground state exhibiting a first dipole moment and an excited state exhibiting a different dipole moment, characterized in that the molecular dipoles include as an acceptor moiety a vinyl group geminally substituted by two strong electron withdrawing groups, at least one of which is a perfluoroalkylsulfonyl moiety.
一种光学制品具有可归因于电磁辐射非线性二阶极化性的效应,它包括一种聚合物,在其重复单元中含有极性排列的非中心对称分子偶极子,该分子偶极子具有一个电子供体分子,通过共轭π键系统与一个电子受体分子相连接,使分子偶极子在显示第一偶极矩的基态和显示不同偶极矩的激发态之间振荡、其特征在于,分子偶极子包括作为受体分子的
乙烯基,该
乙烯基被两个强取电子基团取代,其中至少一个是
全氟烷基磺酰基。