球面波条件下体全息存储的衍射特性分析  

Analysis on diffraction properties of volume holographic storage with spherical waves incident

作　　者：郝锐[1] 赵原源[1] 

机构地区：[1]燕山大学理学院物理系,河北秦皇岛066004

出　　处：《光学技术》2007年第S1期127-128,132,共3页Optical Technique

摘　　要：从理论上推导了球面波作为参考光和读出光时体全息存储的相对衍射效率和晶体旋转角度之间的关系,对得到的衍射效率的理论公式进行了数值模拟,并且对模拟的结果进行了分析。结果表明,球面波系统的存储容量更高,角度选择性更好,并且有利于系统的小型化。In this paper we have theoretically deduced the relation between relative diffraction efficiency and rotation angles of the photorefractive crystal with spherical waves as reference and retrieving beams,the equations of diffraction efficiency are numerically simulated and the results of simulation are also analyzed.The results indicate that the storage system with spherical waves has a larger volume,better angular selectivity and is useful for miniaturization of system.

关 键 词：体全息存储 衍射效率 球面波 角度选择性 

分 类 号：O438.1[机械工程—光学工程]