RELAXATION PHENOMENA IN POLYMER NONLINEAR OPTICAL-MATERIALS

被引:122
作者
SINGER, KD [1 ]
KING, LA [1 ]
机构
[1] AT&T BELL LABS,PRINCETON,NJ 08540
基金
美国国家科学基金会;
关键词
D O I
10.1063/1.349311
中图分类号
O59 [应用物理学];
学科分类号
摘要
The isothermal decay of the second-order nonlinear optical susceptibility of a guest-host azo dye methacrylate film was measured by second-harmonic generation at a series of temperatures. The decay curves were fit to Williams-Watt-Kohlrausch streched exponentials. The activation energies and pre-exponential factors were found to agree with those derived from nonisothermal electric-field-induced second-harmonic generation measurements on similar films. It is concluded that a common underlying process involving a distribution of local relaxations governs the film behavior.
引用
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页码:3251 / 3255
页数:5
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