Shear-induced optical anisotropy in a Langmuir monolayer: a Brewster angle reflectivity study

被引：0

作者：

Cuvillier, N ^{[1
]}

Mingotaud, C ^{[1
]}

机构：

[1] CNRS, Ctr Rech Paul Pascal, F-33600 Pessac, France

来源：

MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS | 1999年 / 8-9卷

关键词：

Langmuir monolayer; optical anisotropy; Brewster angle reflectivity study;

D O I：

10.1016/S0928-4931(99)00077-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Under shear, some specific films present an in-plane molecular alignment. Assuming that the optical property of a such monolayer is similar to that of a 2D nematic liquid crystal, we demonstrated that shearing the initially isotropic film by a rotating disk can lead to an optical anisotropy at the interface. Theoretically, the Brewster angle microscopy image of the monolayer appears like a distorted extinction cross. Experimentally, reflectivity measurements on a mesogenic polyacrylate monolayer fit well the model and shows for the first time shear induced optical anisotropy. (C) 1999 Elsevier Science S.A. All rights reserved.

引用

页码：17 / 21

页数：5