Optical properties of MgO doped LiNbO3 single crystals
Optical properties of MgO doped LiNbO3 single crystals
复制标题
DOI：
10.1016/j.optmat.2005.04.007
复制
发表时间：
2006-04
影响因子：
3.9
通讯作者：
R. Choubey;P. Sen;P. Sen;R. Bhatt;S. Kar;V. Shukla;K. S. Bartwal
中科院分区：
文献类型：
--
作者：
R. Choubey;P. Sen;P. Sen;R. Bhatt;S. Kar;V. Shukla;K. S. Bartwal
对未掺杂和3、5、7mol%MgO掺杂LiNbO3晶体的光学性质进行了比较研究。实验分析了掺杂对折射率和二阶极化率的影响。通过对3、5、7mol%MgO掺杂LiNbO3晶体的比较发现，MgO掺杂量为5mol%LiNbO3晶体的二阶极化率最小。MgO掺杂减少了局域激子的数量，生长的LiNbO3晶体接近化学计量组成。我们还发现，这两个折射率（noand ne）下降，由于MgO掺杂。观察到随着MgO掺杂浓度的增加，截止频率发生蓝移。
Comparative study of the optical properties of undoped and 3, 5, 7mol% MgO doped LiNbO3crystals was undertaken. The effect of doping on refractive indices as well as second order susceptibility (SOS) has been experimentally analyzed. The comparison of 3, 5, 7mol% MgO doped LiNbO3crystals show that the second order susceptibility has minimum at 5mol% MgO doping. MgO doping reduces the number of localized excitons and the grown LiNbO3crystal approaches the stoichiometric composition. We also found that both the refractive indices (noand ne) decrease due to MgO doping. It is observed that the blue shift in the cut off frequency occurred with increasing MgO doping concentration.