OPTICAL-PHASE GRATINGS MADE FROM PHOTOREFRACTIVE POLYMERS

被引:13
作者
KAWATSUKI, N
UETSUKI, M
机构
[1] Kuraray Company, Ltd., Central Research Laboratories, Sakazu, Kurashiki 710
来源
APPLIED OPTICS | 1990年 / 29卷 / 02期
关键词
D O I
10.1364/AO.29.000210
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Based on a combination of surface structure and refractive index modifications, an optical phase grating was fabricated from a thin film of photoreactive polymers, which had been synthesized from methyl methacrylate and a methacrylic ester including nonconjugate carbon-carbon double bonds, and doped with an aromatic ketone. After exposure to ultraviolet light beams through a photomask with a grating pattern, the exposed portion of the polymer film was up to ˜110% thicker and ˜3% higher in refractive index than the unexposed portion. Diffraction efficiencies of light beams passing through the optical phase grating varied with its cross-sectional shape. © 1990 Optical Society of America.
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页码:210 / 215
页数:6
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