电子俘获材料的光学性质及光存储机制研究

报道在硫化锶中掺入Ｅｕ、Ｓｍ和Ｃｅ、Ｓｍ两种激活剂的具有良好的光存储功能的新型光子学材料。以紫外到绿光之间不同波长的光写入信息，用近红外光读出，读出信号为橙色或绿色发光。系统的光响应速率小于２０ｎｓ，写／读／擦速度快；光存储机制为电子的俘获和释放，无热效应，比目前的其他光存贮系统更优越。

Optical Properties and Optical Storage Machanism of Electron Trapping Material

A kind of typical optical materials is developed by doubly rare-earth doped strontium sulfides, which has excellent erasable and rewrit able optical-storage function.Strontium sulfides activated by both Eu, Sin and Ce, Sm are repoted in this paper.Spectral properties and optical storege machanism are investigated. Information can be write by ultraviolet light or blue-green light and can be read by infrared light. The reading signals are green or orange luminescence. These materials have very fast response rate, high storage density and have not thermal effect.