期刊信息
- 刊名： 河北师范大学学报（自然科学版）Journal of Hebei Normal University (Natural Science)
- 主办： 河北师范大学
- ISSN： 1000-5854
- CN： 13-1061/N
- 中国科技核心期刊
- 中国期刊方阵入选期刊
- 中国高校优秀科技期刊
- 华北优秀期刊
- 河北省优秀科技期刊
A Comparative Study on the Properties of Phase Matching in Three Nonlinear Optical Crystals by Type-II Optical Parametric Amplification
摘要/Abstract
分别利用Nd:YAG激光的倍频、三倍频和四倍频谐波脉冲为泵浦光源,对3种非线性光学晶体K2Al2B2O7(KABO),CsLiB6O10(CLBO),β-Ba2O4(BBO)产生激光II型非线性光参量放大相位匹配特性进行了理论计算和分析,讨论了共线以及非共线情况,计算了在不同非共线夹角下的相位匹配角度.计算结果对3种晶体用于II型相位匹配光参量放大提供了理论依据.
Calculated the properties of phase-matched and theo retically analy zed the generation of ultra femtosecond laser radiation in nonlinear optical crystals,K2Al2B2O7 (KABO),CsLiB6O10 (CLBO)and β-Ba2O4 (BBO),by employing a type-II optical parametric amplification (OPA)scheme by the second(532nm),third (355nm)and fourth (266nm)harmonics of picosecond pulse Nd:YAG laser radiation.The conditions of collinear and non-collinear phase matching are investigated and the phase matching angle is calculated under different non-collinear angles.The numerical simulation results are important to the practical optical parametric amplification experiments.