Nd:YAG四倍频激光抽运氘后的拉曼效应及其在激光雷达中的应用  

D_2 Stimulated Raman Scattering Pumped by Fourth Harmonic Nd∶YAG Laser and Its Application in Laser Radar

作　　者：吴永华[1] 岳古明[1] 胡欢陵[1] 周军[1] 胡顺星[1] 

机构地区：[1]中国科学院安徽光机所大气光学重点实验室,合肥230031

出　　处：《中国激光》2000年第9期823-827,共5页Chinese Journal of Lasers

基　　金：国家自然科学基金!(4 97752 58);863计划激光技术领域资助课题

摘　　要：利用 Nd:YAG四倍频激光抽运氘气 (D2 )的受激拉曼效应 ,获得一阶斯托克斯 (Stokes)波长2 89nm。通过改变拉曼介质 D2 气压与抽运光能量 ,获得了一阶斯托克斯输出的较佳条件。该波长与 Xe Cl准分子激光波长 30 8nm采用差分吸收方法 ,建立了用于对流层臭氧探测的激光雷达 ,并初步获得了对流层大气臭氧的垂直分布及其时间变化特征。The first Stokes line 289 nm is generated by deuterium (D 2) stimulated Raman scattering pumped by fourth harmonic Nd∶YAG laser. By changing D 2 pressure and pump energy, the conditions for 289 nm output were optimuzed. Based on differential absorption principle, a laser radar has been developed for monitoring tropospheric ozone using Stokes output at 289 nm and XeCl laser output at 308 nm. The distribution profiles of tropospheric ozone and their temporal variation are reported in this paper.

关 键 词：受激拉曼效应 激光雷达 ND:YAG 激光抽运氘 倍频 

分 类 号：TN958.98[电子电信—信号与信息处理] TN248.1[电子电信—信息与通信工程]