摘要
本文首先讨论了在光折变晶体同一体积内复用多幅全息图的等衍射效率记录方法 ,即递减时间曝光方法。然后采用这种曝光方法 ,分别以掺杂为 0 .0 3 %的Fe :LiNbO3和双掺杂晶体Zn :Fe:LiNbO3为存储介质 ,以Δθ=ΔΘ(ΔΘ =0 .0 94°)为复用角度间隔 ,存储了 12个字母 ,并再现出了清新的图像。
In this paper, firstly a recording method of uniform diffraction efficiency for multiplex hologram record in the same volume in photorefractive crystal was discussed. That was schedule in decreasing time by degree. Then, under this exposal schedule, we stored and reconstructed 12 letters by using Zn：Fe：LiNbO3 and Fe：LiNbO3 crystal as storage medium through angular multiplexing when multiplexing angle interval was △θ=△О（△О=0.094°） .The result showed that the reconstructed images were very satisfactory.
出处
《南昌航空工业学院学报》
CAS
2004年第4期32-35,共4页
Journal of Nanchang Institute of Aeronautical Technology（Natural Science Edition）
基金
江西省教育厅科技项目 (DB2 0 0 3 0 80 68)
江西省测试技术与控制工程研究中心开放基金 (2 0 0 3 -0 8)资助
关键词
体全息存储
角度复用
多重存储
volume holographic storage
angular multiplexing
multiplex volume holographic storage
