Oxides doped with rare-earth ions as a memory medium for rewritable optical information recording

被引：0
|
作者：
Kravets, VG [1 ]
机构：
[1] Natl Acad Sci Ukraine, Inst Informat Recording Problems, UA-252113 Kiev, Ukraine
来源：
OPTICAL ENGINEERING | 1999年 / 38卷 / 09期
关键词：
electron trapping materials; erasable data storage media; optically stimulated luminescence; rare-earth ion;
D O I：
10.1117/1.602199
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The photoluminescent spectra of CaO and MgO oxides doped with rare-earth ions are studied. Photoluminescence stimulated by IR light at room temperature is observed for the first time. Optically stimulated luminescence in Ca(Mg)O:Eu,Sm for different concentrations of dopants after exposure to UV radiation (lambda = 250 nm) and radiation with lambda = 488 nm are investigated. A physical model to explain luminescence and stimulated luminescence is proposed. Materials based on alkaline-earth oxides activated by rare-earth ions are suitable for multiple rewriting of information. (C) 1999 Society of Photo-Optical Instrumentation Engineers. [S0091-3286(99)01409-9].
引用
收藏
页码：1470 / 1477
页数：8
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