玻璃化转变温度和发色团含量对基于聚（N-乙烯基咔唑）的光折变聚合物光栅形成动力学的影响。

Influence of the Glass-Transition Temperature and the Chromophore Content on the Grating Buildup Dynamics of poly(N-vinylcarbazole)-based Photorefractive Polymers.

作者信息

Bittner R, Bräuchle C, Meerholz K

出版信息

Appl Opt. 1998 May 10;37(14):2843-51. doi: 10.1364/ao.37.002843.

DOI:10.1364/ao.37.002843

Abstract

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.

摘要

研究了玻璃化转变温度T(g)和电光发色团含量对光折变聚合物复合材料中光栅形成动力学的影响。发现响应时间强烈依赖于这两个参数。在低T(g)区域，不同发色团含量的复合材料响应速度相似（200-500毫秒），而当T(g)高于测量（室温）温度时会出现显著差异。发色团含量最高的复合材料具有最佳的稳态性能；然而，它们的响应比那些发色团含量较少的复合材料要慢得多。