Simplified method for preparing methylene-blue-sensitized dichromated gelatin

被引：0
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作者：
Kurokawa, Kazumasa [1 ]
Koike, Satoshi [1 ]
Namba, Sinji [2 ]
Mizuno, Toru [3 ]
Kubota, Toshihiro [4 ]
机构：
[1] Flat Panel Display Div. Denso Corp., 500-1, Minamiyama, Komenoki-cho, Nisshin, Aichi 470-01, Japan
[2] Dept. of Research and Development, Denso Corporation, 1-1, Showa-cho, Kariya, Aichi 448, Japan
[3] Nippon Soken, Inc., Shimohasumi-cho, Nishio, Aichi 445, Japan
[4] Dept. of Electronics and Info. Sci., Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606, Japan
来源：
Applied Optics | 1998年 / 37卷 / 14期
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摘要：
Methylene-blue-sensitized dichromated gelatin (MBDCG) is a suitable material for recording full-color holograms in a single layer. However, a drying process in an ammonia atmosphere is necessary to prepare the MBDCG plate. This process is time-consuming and unstable. A simplified method for preparing the MBDCG plate is presented in which the MBDCG can be dried without ammonia. Elimination of the drying process is possible when the methylene blue in MBDCG does not separate. This is achieved by a decrease in the concentration of dichromate in the photosensitized solution and the addition of an ammonia solution to the photosensitized solution. Last, the gelatin is allowed to gel. A Lippmann color hologram grating with a diffraction efficiency of more than 80% is obtained by use of this MBDCG. © 1998 Optical Society of America.
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页码：3038 / 3043
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