Influence of the glass-transition temperature and the chromophore content on the grating buildup dynamics of poly(N-vinylcarbazole)-based photorefractive polymers

被引:74
作者
Bittner, R [1 ]
Brauchle, C [1 ]
Meerholz, K [1 ]
机构
[1] Univ Munich, Dept Phys Chem, D-80333 Munich, Germany
来源
APPLIED OPTICS | 1998年 / 37卷 / 14期
关键词
D O I
10.1364/AO.37.002843
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The influence of the glass-transition temperature T-g and the electro-optical chromophore content on the grating buildup dynamics in photorefractive polymer composites is investigated The response times were found to be strongly dependent on both parameters. In the low-T-g regime, composites of different chromophore content respond similarly quickly (200-500 ms), whereas significant differences occur for T-g above the measurement (room) temperature. The composites with the highest chromophore content give the best steady-state performance; however, their response is much slower than that for those containing less chromophore. (C) 1998 Optical Society of America.
引用
收藏
页码:2843 / 2851
页数:9
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