PHOTOINDUCED REFRACTIVE-INDEX CHANGES IN FULGIDE-DOPED PMMA FILMS

被引：39

作者：

KARDINAHL, T ^{[1
]}

FRANKE, H ^{[1
]}

机构：

[1] GERHARD MERCATOR UNIV DUISBURG,ANGEW LAB,D-47057 DUISBURG,GERMANY

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 1995年 / 61卷 / 01期

关键词：

42.40; 78.65;

D O I：

10.1007/BF01538205

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

As an example for a photochromic system we study an active fulgide in a polymer matrix. For theoretical description a two-state model is suggested. Absorption spectroscopy, m-line spectroscopy and UV real-time holography are tools to characterize the optical properties of the guest/host system. The photoinduced refractive-index change is about 7.5 x 10(-4) per % dye concentration. The diffraction efficiency of the holographic grating induced by W-illumination reaches a high value for photochromic materials of about 7%. The obtained gratings are nonlinear in the case of higher exposure energies.

引用

页码：23 / 27

页数：5

共 16 条

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