MEASUREMENT OF QUADRATIC HYPERPOLARIZABILITIES OF UNSYMMETRICAL DONOR-ACCEPTOR BIARYLS AND POLYARYLS - EFFECT OF SIZE AND TORSION ANGLE OF ARYL UNITS

被引：14

作者：

PUCCETTI, G ^{[1
]}

LEDOUX, I ^{[1
]}

ZYSS, J ^{[1
]}

JUTAND, A ^{[1
]}

AMATORE, C ^{[1
]}

机构：

[1] ECOLE NORM SUPER,CHIM LAB,CNRS,URA 1110,F-75231 PARIS 05,FRANCE

来源：

CHEMICAL PHYSICS | 1992年 / 160卷 / 03期

关键词：

D O I：

10.1016/0301-0104(92)80013-L

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The linear and quadratic nonlinear optical properties of donor-acceptor polyphenyls and naphthyl derivatives are investigated. The behaviour of the static first-order hyperpolarizability beta(0) as a function of the number n of phenyl units separating an acceptor group (cyano) and a donor group (methylthio) is studied for n = 1, 2, 3, and compared to that of similar polyphenyls bearing other donor substituents (N,N-dimethylamino, methoxy). Beta(0) is also measured for unsymmetrical donor-acceptor biaryls containing at least one naphthyl unit. A clear influence of the twist angle between the two aryl units on the quadratic nonlinear response of the molecule is evidenced, allowing for fine control of the transparency/nonlinear efficiency trade-off.

引用

页码：467 / 475

页数：9

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