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为了设计新的具有较高非线性极化率和光损耗小的有机非线性光学（ＮＬＯ）材料，需要了解不同的有机结构对分子非线性的影响。在此基础之上，建议用平行对比的方法来近似估算取代二苯多烯和聚二乙炔（ＰＤＡ）的三阶非线性光学极化率。
In order to design new organic nonlinear optical (NLO) materials with high nonlinear polarizabilities and low optical losses, it is necessary to understand the effect of different organic structures on the molecular nonlinearity. Based on this, it is suggested that the third-order nonlinear optical susceptibilities of substituted dibenzoles and polydiacetylenes (PDA) be approximated by parallel comparison.