Selective image amplification by two-wave mixing with two photorefractive BaTiO3 crystals

被引：0
|
作者：
Kuroiwa, Takashi [1 ]
Matsubara, Mitsuhito [1 ]
机构：
[1] Department of Electrical Engineering, College of Industrial Technology, Nihon University, Narashino, 275-8575, Japan
来源：
Electronics and Communications in Japan, Part II: Electronics (English translation of Denshi Tsushin Gakkai Ronbunshi) | 2000年 / 83卷 / 07期
关键词：
Barium titanate - Crystals - Image analysis - Photorefractive materials;
D O I：
10.1002/1520-6432(200007)83:73.0.CO;2-5
中图分类号：
学科分类号：
摘要：
In the present paper, a new method of selective image amplification using two photorefractive BaTiO3 crystals is proposed and the amplification characteristics of this method are investigated. The gain of beam amplification obtained using the proposed method is almost equal to the product of the gain obtained from each crystal. The rise time of the amplification output also changes when the signal beam power changes with time. The blurring of images caused by the amplification reveals a very small region. The images obtained using this method are more distinct than those obtained using single BaTiO3 crystals, and amplified images obtained by the selective image amplification are of high quality.
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页码：14 / 21
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