Characterization of Index and Surface-Relief Gratings Formed in Methacrylate Photopolymers

被引：0
作者：
Takashi Kojima
Yasuo Tomita
机构：
[1] University of Electro-Communications,Department of Electronics Engineering
来源：
Optical Review | 2002年 / 9卷
关键词：
photopolymers; holographic recording materials; volume hologram; surface-relief grating; micro-optical elements;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
We report on an experimental investigation of the dual (index and surface-relief) grating formation in methacrylate photopolymers in the green. It is found that the dynamics of the diffracted signal from high spatial frequency dual gratings recorded in a thin film sample is mainly determined by the evolution of the volume index grating and is strongly dependent on writing intensities. Low spatial frequency dual gratings recorded in a bulk sample are also investigated. Depth profile and magnitude of the index grating are estimated quantitatively from the diffraction efficiency as a function of polish depth from the bulk sample’s surface. It is confirmed that the surface-relief grating is dominant in the light diffraction from the bulk sample.
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页码：222 / 226
页数：4
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