Analysis of Diffraction Characteristics of Holographic Grating in Photopolymer Films by Beam Propagation Method
Analysis of Diffraction Characteristics of Holographic Grating in Photopolymer Films by Beam Propagation Method
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光束传播法分析光聚合物薄膜中全息光栅的衍射特性
DOI：
10.1143/jjap.48.03a027
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发表时间：
2009
影响因子：
1.5
通讯作者：
M. Yamamoto
中科院分区：
文献类型：
--
作者：
S. Yoshida;M. Yamamoto
光致聚合物是一种光致聚合的有机材料，适用于记录厚相全息图。此外，光聚合物是具有高衍射效率的稳定介质;因此，它们被广泛用作全息记录介质。光聚合物必须满足某些标准才有资格作为实用的记录介质。然而，这种光聚合物的反应过程是高度复杂的。本文采用基于基元反应的扩散模型模拟了光致聚合物中衍射光栅的形成过程，并利用光束传播法详细分析了其衍射特性。通过这种方法，我们分析并获得了衍射特性，否则难以分析的传统方法，如耦合波和严格耦合波分析。此外，我们也进行了实验干涉条纹记录和评估的光聚合物介质的记录特性。我们认为，我们的分析结果将提供有用的信息全息数据存储的发展。
Photopolymers are photopolymerized organic material, which are suitable for recording thick phase holograms. In addition, photopolymers are stable media with high diffraction efficiency; therefore, they are widely used as holographic recording media. A photopolymer must satisfy certain criteria to qualify as a practical recording medium. However, the reaction processes of such photopolymers are highly complicated. In this study, we have simulated the formation of diffraction gratings in photopolymers using the diffusion model based on elementary reactions, and analyzed their diffraction characteristics in detail by the beam propagation method. By this method, we analyzed and obtained diffraction characteristics that are otherwise difficult to analyze by conventional methods such as coupled-wave and rigorous coupled-wave analyses. Moreover, we also performed experimental interference fringe recording and evaluated the recording characteristics of photopolymer media. We consider that the results of our analysis will provide useful information for the development of holographic data storage.