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

来源 :光学学报 | 被引量 : 0次 | 上传用户:xinran200391127
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
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。用四能级结构模型对多重存贮的物理机制进行了探讨 Reported that the methyl orange azo dye doped polyvinyl alcohol (MO / PVA) thin film material in Ar + laser 488.0nm line pre-irradiation, with orthogonal linearly polarized 632.8nm light as the write light, by rotating Samples, in the same spot to form a number of different orientation phase grating, to achieve a multi-holographic storage of experimental results. In the storage of triple images, by controlling each writing time, three uniformly bright diffraction images were obtained, the average diffraction efficiency was 0.1%. The experiment found that the hologram can reproduce with red light for a long time, but only a weak erasing effect. The four-level structure model is used to discuss the physical mechanism of multiple storage
其他文献
讨论了光纤克尔门再生器抑制输入光脉冲的加性噪声和脉冲中心抖动的机制,分析了再生器中各元件的配置对其抑制噪声能力的影响。指出根据通信线路中心的噪声特性,适当选择克尔门
提出了一种新的激光光化学三元反应体系,用于制备硫化铅薄膜。应用吸收光谱、扫描电镜和X射线光电子能谱等测试手段研究了膜的性质和组成,指出了该方法淀积硫化物薄膜的可行性。