5ps紫外超短光脉冲产生技术  

Generation of a 5 ps Ultrashort UV Laser Pulse

作　　者：赵卫[1,2] 杨斌洲[1,2] 乔学光[1,2] 杨鸿儒[1,2] 

机构地区：[1]中国科学院西安光机所瞬态光学技术国家重点实验室 [2]西安石油学院

出　　处：《中国激光》1998年第11期981-984,共4页Chinese Journal of Lasers

摘　　要：描述了采用国内新型高效的二倍频晶体ＫＴＰ和四倍频晶体ＬＡＰ建立起来的一套稳定可靠的１．０６μｍ脉冲激光四倍频系统，通过计算机模拟确定了运行参数的最佳值，从而使谐波器件的转换效率提高，另外还分析了失配角Δθ，光功率密度等因素对倍频效率的影响。该系统产生的超短紫外光脉冲对Ｘ光条纹相机的动态参数及带时标的条纹相机的研究具有重要意义。This paper describes a fourth harmonic system for a 1 06 μm laser using nonlinear optic crystals, which are a frequency doubling KTP crystal and a frequency quadrupling LAP crystal. Using computer simulation, we have got optimal parameters of the harmonic device. Some parameters of affecting the harmonic conversion efficiency, phased matching, maximum direction of the effective nonlinear coefficient and threshold power are discussed. This fourth harmonic system offers wide applications to the diagnostics of the soft X ray ps streak camera and framing camera, nonlinear optics and other ultrafast phenomena study. Finally, a 5 ps ultrashort UV laser pulse has been generated and measured using a streak camera.

关 键 词：紫外超短光脉冲 谐波 相位匹配 激光技术 

分 类 号：TN240.1[电子电信—物理电子学]