SYNTHESIS OF FREQUENCY-DOUBLING NONLINEAR-OPTICAL POLYMERS, FUNCTIONALIZED WITH AMINONITRO STILBENE DYES - 2ND-HARMONIC GENERATION IN CORONA POLED THIN-FILMS

被引：12
作者：
SHEEREN, G
PERSOONS, A
RONDOU, P
VANBEYLEN, M
SAMYN, C
机构：
[1] UNIV LEUVEN,MACROMOLEC & PHYS ORGAN CHEM LAB,CELESTIJNENLAAN 200F,B-3001 HEVERLEE,BELGIUM
[2] UNIV LEUVEN,CHEM & BIOL DYNAM LAB,B-3001 HEVERLEE,BELGIUM
来源：
EUROPEAN POLYMER JOURNAL | 1993年 / 29卷 / 07期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1016/0014-3057(93)90295-Q
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 synthesis and second harmonic coefficients, d33, and d31 as well as the related susceptibilities, chi(zzz)(2), of two new series of (NLO-dye methacrylate)-(methyl methacrylate) copolymers were investigated. The NLO-chromophores bound covalently to the polymer chain were 4-nitro-4'-dialkylamino-alpha-cyano-stilbene, 4-nitro-4'-dialkylamino-stilbene. Thin films were obtained by spin-coating and poled by a positive corona discharge using a needle electrode in order to induce noncentrosymmetry into the systems. Nonlinear susceptibilities, chi(zzz)(2), of the films were derived from the analysis of full-angle Maker fringe patterns at 1064 nm. Chi(zzz)(2) values as high as 3.2 . 10(-7) esu could be measured.
引用
收藏
页码：975 / 979
页数：5
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