Generation of UV laser light by stimulated Raman scattering in D2, D2/Ar and D2/He using a pulsed Nd:YAG laser at 355nm

• 来源期刊: 中国物理（英文版）
• 关键词: stimulated Raman scattering (SRS) conversion efficiency conversion stability
• 年，卷（期）: 2003,（9）
• 页码范围: 1021-1025
• 页数: 5页
• 语种: 英文

摘要

A pulsed Nd:YAG laser at 355nm is used to pump Raman cell filled with D2,D2/Ar and D2/He.With adequately adjusted parameters,the maximum photon conversion efficiency of the first-order Stokes light(S1,396.796nm)reaches 33.33％ in D2/Ar and the stability of S1 in pure D2 is fairly high,the energy drift being less than 10％ when the pump energy drifts in the range of 5％.The conversion efficiency and stability,which are functions of the composition and pressure of the Raman medium and the energy of pump laser,are investigated.The result has been used to optimize the laser transmitter system for a differential absorption lidar system to measure NO2 concentration profiles.