摘要
用偏振紫外-可见吸收及旋转样品二次谐波（SHG）测量法研究了半花菁／花生酸Y型交替多层膜中分子在基极平面内分布的各向异性．拉膜过程引发的半花菁分子在平面内沿提拉方向的规则取向具有镜面对称性，并随着拉膜速度或层数的增大而增强．
Polarized UV-Visible absorption and potation-angle second harmonic generation (SHG) techniques were used to investigate the in-plane symmetry in Y-type Langmuir Blodgett(LB) multilayers of a hemicyanine dye interleaved with inert material arachidic acid. Dipping-induced anisotropy of the molecular orientation with a unique reflection symmetry was enhanced with increasing the dipping speed.
出处
《物理化学学报》
SCIE
CAS
CSCD
北大核心
1996年第7期589-593,共5页
Acta Physico-Chimica Sinica
基金
国家教委归国留学生启动基金
关键词
二次谐波产生
各向异性
半花菁
LB膜
光学非线性
Langmuir-Blodgett multilayer, Second harmonic generation, Anisotropy, Hemicyanine
