Optical property analysis of periodic structures fabricated by photopolymerization

Abstract

A functionalized optical material has been widely studied in the past years. In particular, the interest for polarization holography has been growing because polarization holographic gratings can be used for various applications. These gratings have been fabricated by using photoalignment methods. This process was widely investigated but have some difficulties such as necessity of high-intensity polarized light and specific compounds that limit degree of freedom of molecular design. We have recently found that molecular alignment was induced by photopolymerization of the mixture of anisotropic monomers with moving light. In this process, a periodic structure was spontaneously formed in the obtained polymer film. Moreover, we found that the obtained grating film has distinct polarization property. In this study, we fabricated the polymer films with periodic structures and analyzed its optical properties.