论文部分内容阅读
在生长ＬｉＮｂＯ３过程中掺进６ｍｏｌ％ＺｎＯ和０．２ｍｏｌ％Ｎｄ２Ｏ３生长了Ｚｎ∶Ｎｄ∶ＬｉＮｂＯ３晶体。测试了晶体的吸收光谱、荧光光谱和抗光损伤阈值；应用简并四波混频技术研究了Ｚｎ∶Ｎｄ∶ＬｉＮｂＯ３晶体的光折变（光损伤）效应，它的光栅形成机制是异常光生伏特效应，它的抗光损伤能力比Ｎｄ∶ＬｉＮｂＯ３晶体提高二个数量级，这是由于光电导的增强而引起的
In the process of growing LiNbO3 doped with 6mol% ZnO and 0.2mol% Nd2O3 grown Zn: Nd: LiNbO3 crystals. The absorption, fluorescence and light damage thresholds of the crystal were tested. The photorefractive (photodissociation) effect of Zn:Nd:LiNbO3 crystal was studied by using the degenerate four-wave mixing technique. The grating formation mechanism was abnormal photo-voltaic Effect, its ability to resist light damage than Nd: LiNbO3 crystal by two orders of magnitude, which is due to enhanced photoconductive