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细菌视紫红质 (bacteriorhodopsin ,bR)具有独特的光、化学和热稳定性 .bR光循环中间态M态的最大吸收峰相对于始态明显地发生蓝移 ,所以基于bR M的光致变色模型可以为光学应用尤其是信息存储提供一个机制 .但是野生型bR中M态的寿命很短 ,不适合用来进行信息存储 .本文采用化学添加剂的方法 ,将bR/聚乙烯醇 (PVA)薄膜的中间态M态的寿命显著延长 .用此化学修饰的bR薄膜作为记录介质进行缩微图像存储 ,所得到的图像具有较高的对比度和较长的保存时间 .此实验首次实现了在化学修饰的bR薄膜上基于bR始态和中间态M态的双稳态模型在光学信息存储上的应用
Bacteriorhodopsin (bR) has unique optical, chemical and thermal stability, and the maximum absorption peak of the intermediate M state in the bR light cycle is significantly shifted from the initial state, so the bRM-based photochromic model Can provide a mechanism for optical applications, especially information storage.But the wild-type bR M state life is very short, not suitable for information storage.In this paper, the method of chemical additives, bR / polyvinyl alcohol (PVA) film The lifetime of the intermediate state M is significantly prolonged.The bR thin film with this chemical modification as a recording medium for microfilm storage, the resulting image has a higher contrast and longer storage time.This experiment for the first time in the chemical modification of the bR Application of Bistable Model Based on bR Initial State and Intermediate M State on Optical Information Storage