用于锐利衍射光学元件记录的纳米结构光聚合物的衍射和干涉表征

Diffractive and Interferometric Characterization of Nanostructured Photopolymer for Sharp Diffractive Optical Elements Recording.

作者信息

Fernández Roberto, Gallego Sergi, Tomita Yasuo, Pascual Inmaculada, Beléndez Augusto

机构信息

Instituto Universitario de Física Aplicada a las Ciencias y las Tecnologías, Universidad de Alicante, P.O. Box 99, E-03080 Alicante, Spain.

Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal, Universidad de Alicante, P.O. Box 99, E-03080 Alicante, Spain.

出版信息

Polymers (Basel). 2018 May 10;10(5):518. doi: 10.3390/polym10050518.

DOI:10.3390/polym10050518

PMID:30966552

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6415438/

Abstract

We study the behavior of a nanoparticle-polymer composite (NPC) material, based on a thiol-ene monomer system, working with long grating spacing. Thus, we evaluate the suitability of the NPC for storing complex diffractive optical elements with sharp profiles, such as blazed gratings. Using holographic methods, we measure the "apparent" diffusion of the material and the influence of the spatial period on this diffusion. The applicability of this material in complex diffractive optical elements (DOEs) recording is analyzed using an interferometric method. Supported by the results of this analysis, we record blazed gratings with different grating spacing and measure the maximum diffraction efficiency (DE) achieved. The results show that NPC has a good behavior in this range of spatial frequencies.

摘要

我们研究了一种基于硫醇-烯单体体系、适用于长光栅间距的纳米颗粒-聚合物复合材料（NPC）的性能。因此，我们评估了NPC用于存储具有尖锐轮廓的复杂衍射光学元件（如闪耀光栅）的适用性。利用全息方法，我们测量了该材料的“表观”扩散以及空间周期对这种扩散的影响。使用干涉测量方法分析了这种材料在复杂衍射光学元件（DOE）记录中的适用性。在该分析结果的支持下，我们记录了具有不同光栅间距的闪耀光栅，并测量了所达到的最大衍射效率（DE）。结果表明，NPC在这个空间频率范围内表现良好。