铌酸锂波导中的非线性Cerenkov辐射  

Nonlinear Cerenkov radiations in a LiNbO_3 waveguide

作　　者：胡小鹏[1] 周进[1] HU Xiao-peng;ZHOU Jin(School of Physics,Nanjing University,Nanjing 210093,China)

机构地区：[1]南京大学物理学院,江苏南京210093

出　　处：《物理实验》2018年第7期1-3,共3页Physics Experimentation

摘　　要：研究了质子交换铌酸锂多模波导中的非线性上转换Cerenkov辐射,包括同一导模的直接Cerenkov倍频辐射和不同导模之间耦合产生的Cerenkov和频辐射.实验测得各个点的Cerenkov辐射角,实验值与理论计算结果符合得很好.Nonlinear Cerenkov radiations in a proton-exchanged LiNbO 3 multi-mode waveguide were investigated,including Cerenkov second harmonic generation and mode-coupled Cerenkov sum frequency generation between different guided-modes.The Cerenkov radiation angles of all the radiation spots were measured,and the experiment results matched well with theoretical calculations.

关 键 词：非线性Cerenkov辐射 光波导 倍频 和频 模式耦合 

分 类 号：O437[机械工程—光学工程] TN252[理学—光学]