Y向切割掺杂铌酸锂晶体中的光耦合  

Light coupling in Y-cut doped lithium niobate crystals

作　　者：高垣梅[1] 刘思敏[1] 郭儒[1] 黄春福[1] 汪大云[1] 

机构地区：[1]南开大学物理学院,天津300071

出　　处：《物理学报》2004年第9期2958-2963,共6页Acta Physica Sinica

基　　金：国家自然科学基金 (批准号 :60 2 780 0 6和 60 3 780 13 )资助的课题~~

摘　　要：实验研究了y向切割掺杂铌酸锂晶体中入射光和反射光之间的光耦合 .当异常光分别沿 +y和 -y轴方向入射时 ,二者的透射率和反射率的时间行为基本一致 .而寻常光分别沿 +y和 -y轴方向入射时 ,二者的透射率和反射率的时间行为明显不同 .We experimentally study the light coupling behaviors between the transmitting light and reflected light in y cut lithium niobate crystals. When the e polarized incident light is launched into the crystals along + y axis and - y axis, respectively, we find that the time behaviors of the reflectivity and transmissivity are almost identical for both cases, respectively. Whereas when the o polarized incident light is launched into the crystals along + y axis and - y axis, respectively, the time behaviors of the reflectivity and transmissivity for both cases are obviously different. We investigate the physics mechanism of these phenomena preliminarily.

关 键 词：光子晶体 反射光栅 光耦合 光生伏打效应 扩散机理 

分 类 号：O734[理学—晶体学]