双掺杂LiNbO_3晶体中的稳态空间电荷场  

Steady-State Space Charge Field in Doubly Doped LiNbO 3 Crystals

作　　者：刘友文[1] 刘立人[1] 李建郎[1] 周常河[1] 

机构地区：[1]中国科学院上海光学精密机械研究所,上海201800

出　　处：《光学学报》2000年第12期1629-1634,共6页Acta Optica Sinica

基　　金：国家自然科学基金;中国科学院基金;上海应用物理中心资助项目

摘　　要：建立了包括扩散、漂移和光伏打三种输运机制下双掺杂 Li Nb O3晶体在用双色光进行光存储的带输运方程 ,并得出了小调制度下稳态空间电荷场的分析解。对双色光的光强比、体光栅的波矢。By taking into account of diffusion, drift and the photovoltaic effect, the band transport equations are set up when the volume holography is recorded in doubly doped LiNbO 3crystals by using two color lights, and obtain the analytical solution of the steady state space charge field. The effects of the ratio of intensities of two color lights, the grating wave vector, the doubly doped concentrations and the oxidation reduction state on the steady state space charge field are calculated and discussed.

关 键 词：体全息存储 稳态空间电荷场 双掺杂铌酸锂晶体 

分 类 号：TP333.42[自动化与计算机技术—计算机系统结构]