聚乙烯醇掺入重铬酸盐明胶对全息材料性能的影响

实验与检测的结果表明，将适量的聚乙烯酸掺入重铬酸盐明胶，并相应地改变胶液的配方，对重铬酸盐明胶的全息性能产生了多方面的影响。提高了胶膜的偏置硬度，改变了全息图内部的微结构，增大了全息图的表面浮雕深度，提高了全息图的环境稳定性等。同时又基本保持了传统重铬酸盐明胶优良的全息特性，这对利用重铬酸盐明胶制作全息图与全息光学元件等方面的应用是有利的。已获得了实验与检测的结果，并对基本原理进行了讨论。

Influences on Holographic Performance Properties by Polyvinyl Alcohol Introduced into Dichromated Gelatin

Just the right amount polyvinyl alcohol and some additives were introduced into the gelatin ammonium dichromate system.The results of experiments and inspections Showed that many-sided influences emerged in the holographic performance properties of dichromated gelatin when the polyvinyl alcohol was incorporated. The bias hardness of the film was raised. Its holograms' micrestructure was varied, surface relief was deepened and environmental Stability was improved, etc. On the other hand, the excellent holographic characteristics of the conventional dichromated gelatin were kept. Therefore, it can be advantageously used for holograms and holographic optical elements. Its principal principle is discussed and the results of the experiments and inspections are presented.