机构地区: 浙江师范大学数理与信息工程学院信息光学研究所
出 处: 《光电子.激光》 2003年第5期538-541,共4页
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.
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
领 域: [一般工业技术]