MO/PVA薄膜材料在Ar+激光488.0nm线预辐照下的红光多重全息存贮  

Red Light Multiple Hologram Storage in Thin Layers of Methyl Orange Dyes Doped Polyvinyl Alcohol Materices Pre Irradiated by the 488.0 nm Line of an Ar Ion Laser

作　　者：刘益春[1,2,3] 王海宇[1,2,3] 田明珍 林久令 孔祥贵[1,2,3] 黄世华 虞家琪[1,2,3] 

机构地区：[1]东北师范大学理论物理所 [2]中国科学院长春物理所 [3]中国科学院长春物理所激发态过程开放实验室

出　　处：《光学学报》1997年第11期1486-1490,共5页Acta Optica Sinica

摘　　要：报道了甲基橙偶氮染料掺杂的聚乙烯醇（ＭＯ／ＰＶＡ）薄膜材料在Ａｒ＋激光４８８．０ｎｍ线预辐照下，用正交线偏振的６３２．８ｎｍ光作为写入光，通过旋转样品，在同一光斑内形成多个取向不同的相位光栅，实现了多重全息存贮的实验结果。在三重图像的存贮中，通过控制每次的写入时间，得到了三个均匀明亮的衍射图像，其平均衍射效率为０．１％。实验发现，该全息图可用红光长时间再现，而仅有较弱的擦除作用。We realized hologram storage within 0.07 cm 2 light spot in thin layers of polyvinyl alcohol (PVA) matrices doped with methyl orange dyes (MO), pre irradiated by the 488.0 nm line of an Ar ion laser using two orthogonal linear polarized 632.8 nm light beams. By rotating sample, multi hologram storage was achieved. By controlling writing time, three hologram images have been recorded in the same light spot. The mechanism of the multiple hologram storage in MO/PVA thin film was discussed using a four energy level model of MO molecular in PVA materices.

关 键 词：甲基橙 聚乙烯醇薄膜 多重全息 薄膜 光全息存贮 

分 类 号：O438[机械工程—光学工程] O484.41[理学—光学]