摘要
在Ｅｕ：Ｆｅ：ＬｉＮｂＯ３晶体的双光束耦合实验中，减小晶本厚度，增大泵浦光束直径，都可使指数增益系数和衍射效率增大，２θ角度响应范围加宽。升高温度亦可增大衍射效率。本文对上述实验结果进行了理论分析。
In the experiments of two-beam coupling of Eu: Fe: LiNbO3 crystal, the exponential gain coefficients and the diffractive efficiencies can be increased by reducing the thickness of the crystal and increasing the diameter of pump beam. In this case, the 2θ angle response area of Γ and η are boarded. The diffractive efficiency may also be increased by raising the temperature. These results are theoretically discussed in this paper.
出处
《高技术通讯》
CAS
CSCD
1996年第1期9-11,共3页
Chinese High Technology Letters
基金
国家自然科学基金
关键词
晶体
衍射效率
双光束耦合
Eu: Fe: LiNbO3 crystal, Exponential gain coefficient, Diffractive efficiency
