2ND-HARMONIC GENERATION AND OPTICAL ANISOTROPY OF A SPIN-CAST POLYMER FILM

被引：14

作者：

WANG, CH

GUAN, HW

机构：

[1] Department of Chemistry, University of Nebraska—Lincoln, Lincoln, Nebraska

来源：

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS | 1993年 / 31卷 / 13期

关键词：

2ND HARMONIC GENERATION; OPTICAL ANISOTROPY; SPIN-CAST POLYMER FILM;

D O I：

10.1002/polb.1993.090311310

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The nonlinear susceptibilities (chi(33)((2)), chi(31)((2))), and the refractive index anisotropy, of a main-chain accordion polymer, BCSC (see the text for the complete chemical formula), have been measured by the techniques of second harmonic generation (SHG) and waveguiding. A large birefringence, which is induced in the BCSC film by the spin-coating process, is almost removed by electric field poling. Our results demonstrate the fundamental difference between the birefringence associated with quadrupolar orientational order and the dipolar order associated with SHG. (C) 1993 John Wiley & Sons, Inc.

引用

页码：1983 / 1988

页数：6

共 15 条

[1] LIGHT WAVES AT BOUNDARY OF NONLINEAR MEDIA [J].