摘要
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。
Langmuir-Blodgett monolayer is made in the mixed stilbazium salt andtwenty-acid.Measure the second-harmonic generation of Langmuir-Blodgett film,Sec-ond-harmonic generation signal is larger than that of pure stilbazium salt Langmuir-Blodgett film. The second-harmonic generation signal increase. When the stilbazium saltcontent on Langmuir-Blodgett film increase.when content is about 0.5-0.7,the signal is thelargest.After that,the signal reduce when the content increase. The increase of thesecond-harmonic generation signal in mixed stilbazium salt and twenty-acidLangmuir-Blodgett film is that the contribution of quantum size effect on the opticalnonlinear.When stilbazium salt content is about 0.5-0.7,the optical nonlinear contributionof quantum size effect is maximum.
出处
《天津理工学院学报》
1994年第2期14-20,共7页
Journal of Tianjin Institute of Technology
基金
国家自然科学基金
中科院长春物理所激发态物理开放实验室