平面激光诱导荧光实验中激励激光的光束整形  

Exciting laser beam shaping in planar laser-induced fluorescence experiment

作　　者：张振荣[1] 王晟[1] 李国华[1] 赵新艳[1] 叶景峰[1] 胡志云[1] 叶锡生[1] 

机构地区：[1]西北核技术研究所激光与物质相互作用国家重点实验室,陕西西安710024

出　　处：《中国光学》2013年第3期359-364,共6页Chinese Optics

基　　金：激光与物质相互作用国家重点实验室基金资助项目(No.SKLLIM1009-02)

摘　　要：分析了激励激光光强分布对平面激光诱导荧光(PLIF)实验中荧光强度的影响。基于柱面微透镜列阵设计了一套激光片状光束匀滑整形系统,并根据PLIF实验的具体要求,通过光线追迹方法优化了系统参数。建立了片状光束整形实验系统,对染料激光进行了匀滑整形,获得了不均匀性<4%的均匀片状光束,满足了PLIF实验所需。在此基础上建立了PLIF实验系统,获得了酒精灯火焰和CH4/air预混火焰中OH的二维荧光分布。Influence of exciting laser sheet intensity distribution on the fluorescence intensity distribution in a Planar Laser-induced Fluorescence（PLIF） experiment was analyzed. Based on cylindrical lens array, a laser sheet shaping system was designed. According to the requirement of PLIF, several parameters were optimized with ray tracing method. The laser beam shaping experiment system was established and applied to the PLIF experiment for dye laser beam shaping and acquiring smoothing laser sheet with the nonuniformity no more than 4%. With the uniformity laser sheet beam, PLIF was applied to the measurement of fluorescence imaging of OH in alcohol flame and CH4/air premixed combustion.

关 键 词：光束整形 平面激光诱导荧光 柱面微透镜列阵 片状光束 

分 类 号：TN241[电子电信—物理电子学]