ELECTROOPTIC COEFFICIENT DETERMINATION IN STRATIFIED ORGANIZED MOLECULAR THIN-FILMS - APPLICATION TO POLED POLYMERS

被引:26
作者
CHOLLET, PA
GADRET, G
KAJZAR, F
RAIMOND, P
机构
[1] CEA Saclay, Gif-sur-Yvette, France
关键词
D O I
10.1016/0040-6090(94)90516-9
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We describe a method which enables us to determine the linear and quadratic electro-optic coefficients (real and imaginary parts) of thin stratified films even inside the absorption range. The principle is based on the interferences between the electric-field-induced modulation of the transverse electric and transverse magnetic reflected waves. Experiments performed on a poled polymer yield microscopic parameters such as the excited and fundamental state permanent moments and the difference and transition moments which are in a very good agreement with other determinations. The presence of an excited state not detected by linear spectroscopy was revealed.
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页码:132 / 138
页数:7
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