YAG单晶刻面发光屏的研究  

A Study of YAG Single Crystal Faceted Luminescent Screen

作　　者：陈文彬[1] 成建波[1] 杨开愚[1] 

机构地区：[1]电子科技大学光电子技术系,成都610054

出　　处：《真空科学与技术》2000年第2期134-136,共3页Vacuum Science and Technology

摘　　要：开发了用于投影显示的Lu3 + ,Ga3 + 双掺杂的Ce,Tb∶YAG单晶绿色发光屏 ,但这种发光屏的外发光效率相对较低。一种截顶圆锥结构可以大大提高出射光通量 ,理想状况下可使外发光效率达到原来的 5 2倍。在详细分析了这种理想发光模型之后 ,采用晶体的各向异性腐蚀工艺形成了具有近似这种结构的网状刻面屏 ,外发光效率提高到原来的 2 3倍。We have developed Lu 3+ ,Ga 3+ doped Ce,Tb∶YAG single crystal luminescent screen used for projection display.The external efficiency of the single crystal YAG screen is relatively low.A truncated cone geometry can increase the external efficiency by a factor of 5 2.An anisotropy etching process of YAG has been developed for the fabrication of a YAG luminescent screen with truncated square mesas.A large fraction of the cathodoluminescent can be directed through the untextured front surface of the crystal.An improvement in phosphor efficiency by a factor of 2 3 has been achieved.

关 键 词：YAG 外发光效率 发光屏 投影管 

分 类 号：TN141.31[电子电信—物理电子学] TB43[一般工业技术]