2ND-HARMONIC GENERATION IN POLED MOLECULARLY DOPED POLYMER-FILMS - PUSH-PULL BUTADIENES IN POLY(METHYL METHACRYLATE) AND POLYSTYRENE

被引：5
作者：
RAY, PC
DAS, PK
机构：
[1] Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore
来源：
CHEMICAL PHYSICS LETTERS | 1994年 / 229卷 / 4-5期
关键词：
D O I：
10.1016/0009-2614(94)01062-5
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：
We report second harmonic generation in a new class of organic materials, namely donor-acceptor substituted all-trans butadienes doped in poly(methyl methacrylate) or polystyrene and oriented by corona poling at elevated temperatures. Second harmonic measurements were made at room temperature. The observed d(33) coefficients are greater than those of potassium dihydrogen phosphate or 4-dimethylamino-4'-nitrostilbene doped in similar polymer matrices. Rotational diffusion coefficients estimated from the decay characteristics of the second harmonic intensity in the polymer films indicate that the polymer matrix plays a major role in stabilizing the dopants in a nonlinear optics conducive environment.
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页码：415 / 420
页数：6
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