Department of Electronics Engineering, University of Electro-Communications,1-5-1 Chofu-gaoka, Chofu, Tokyo 182-8585, Japan.
Opt Lett. 2010 Feb 1;35(3):396-8. doi: 10.1364/OL.35.000396.
We demonstrate substantial shrinkage suppression of nanoparticle-polymer composite transmission gratings by use of the step-growth polymerization mechanism. It is shown that the polymerization shrinkage can be reduced as low as 0.3% at the nanoparticle concentration of 35 vol. % by which the refractive index modulation and the material sensitivity are maximized to be 8x10(-3) and 1014 cm/J, respectively, in the green. Our results offer a noticeable advance in the development of holographic data storage materials.
我们通过使用逐步聚合反应机制证明了纳米粒子-聚合物复合传输光栅的大幅收缩抑制。结果表明，在纳米粒子浓度为 35 体积%的情况下，聚合收缩率可低至 0.3%，从而使折射率调制和材料灵敏度最大化，分别在绿光下达到 8x10(-3)和 1014 cm/J。我们的结果为全息数据存储材料的发展提供了显著的进展。
