Ce：KNSBN晶体红光两波耦合特性研究

基金项目:

国防科工委预研基金

详细信息

Study of two wave coupling feature of Ce：KNSBN crystal at red light region

摘要: 用红光对掺铈的铌酸钾钠锶钡(KNSBN)单晶样品进行了两波耦合的测量,研究了两波耦合中样品的增益系数Γ与两束入射光夹角2θ的关系.用光折变理论拟合了Γ-2θ关系的实验结果,求出了该样品的有效光折变电荷密度,有效电光系数和电子-空穴对抗率的数值.
- 光折变晶体 /
- 两波耦合
Abstract: Using 6328nm red light,we have made the experimental studies to two wave light coupling in Ce:KNSBN single crystal and demonstrate that the gain coefficientΓof two-wave coupling is a function of the crossing angle 2θ of two beams.According to fitting of Γ-2θ experimental data,the effective photo refractive charge density,the effective electro optical coefficient and the hole electron competition factor have been derived.These results are useful to optical information processing.
- photorefractive crystals /
- two-wave coupling

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