聚集体分子的基频和高阶线性Raman散射研究  

A STUDY ON FUNDAMENTAL AND HIGHER ORDER LINEAR RAMAN SCATTERING OF AGGREGATED MOLECULE

作　　者：潘多海[1] 郇宜贤[1] 傅克德[1] 张鹏翔[2] 

机构地区：[1]陕西师范大学物理系,西安710062 [2]中国科学院物理研究所,北京100080

出　　处：《物理学报》1992年第7期1196-1203,共8页Acta Physica Sinica

摘　　要：本文报道了2,2′菁染料的J聚集体吸附于银胶体的表面增强基频和高阶线性Raman散射效应,分析了基频和高阶线性Raman光谱随染料溶液浓度的变化关系。结果表明,J聚集体分子在银胶体表面具有一个稳定的吸附结构,且侧立吸附于表面,一些低波数振动模式起因于J聚集体分子。高阶线性Raman散射的增强与J聚集体分子的性质有关。Fundamental and higher order linear Raman scattering of J-aggregated 2,2'-cyanine adsorbed on the silver colloid has been analyzed on the basis of its concentration dependence. The results indicate that there exists only one kind of stable a-dsorbed J-aggregate structure. Some of the low-frequency bands in Raman spectrum are mainly due to J-aggregated molecule, which also plays an important role in the enhancement of higher order linear Raman scattering.

关 键 词：聚集体分子 基频 喇曼散射 

分 类 号：O631[理学—高分子化学]