摘要
利用单片机AT89C51作为主控单元,采用时间递减曝光法,对光折变晶体角度多重全息存储衍射效率的均匀性进行了控制。实验中,采用角度多重方案在Fe:LiNbO3晶体内存储了300幅全息图,测定全息图的衍射效率约10-5,各全息图的衍射效率相当均匀,且系统结构简单,通用性强,使用灵活。
An anglemultiplexing volume holographic storage system,using a singlechip processor to control the exposure time of each recording hologram was demonstrated.As many as 300 holograms were strored in a 90° geometry system,the storage media is Fe:LiNbO3 crystal.To characterize the system′s performance,the diffraction efficiency of the hologram is about 10-5, the images were reconstructed with equal diffraction efficiency,and the result is rather good.
出处
《光电子．激光》
EI
CAS
CSCD
北大核心
2003年第5期538-541,共4页
Journal of Optoelectronics·Laser
基金
国家重点基础研究"973"资助项目(G19990330)
清华大学"985"学科建设资助项目
关键词
单片机
时间递减曝光法
衍射效率
均匀性
角度多重
全息存储
diffraction efficiency
volume holographic storage
schedule in decreasing time by degrees
single-chip processor
