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把芪盐与二十酸混合，制备单层ＬＢ膜，测量ＬＢ膜的二次谐波，得到了比纯芪盐ＬＢ膜更大的二次谐波信号。二次谐波信号随ＬＢ膜上芪盐含量的增加而增加，在芪盐含量为０．５－０．７范围二次谐波信号达到最大值，之后，随芪盐在ＬＢ膜上含量的增加而降低。作者认为，芪盐与二十酸混合制得的ＬＢ膜，二次谐波增强是由于量子尺寸效应对光学非线性的贡献，并认为芪盐与二十酸有一最佳混合比，约在芪盐含量为０．５－０．７处，量子尺寸效应对二次谐波的贡献最大。
The stilbene salt was mixed with icosanoic acid to prepare monolayer LB film, and the second harmonic of LB film was measured to obtain larger second harmonic signal than pure Q salt LB film. The second harmonic signal increased with the increase of the content of stilbene salt on LB film, and the second harmonic signal reached the maximum value in the range of 0.5-0.7 with the content of stilbene salt on LB film Increase and decrease. The authors believe that the second harmonic enhancement due to the quantum size effect on the optical nonlinearity of the LB film prepared by the combination of stilbene and arachidic acid is believed to be an optimal mixing ratio for stilbene and azeotrope, Salt content of 0.5-0.7 Department, the quantum size effect on the second harmonic contribution of the largest.