飞秒脉冲测量技术  

MEASUREMENTS OF FEMTOSECOND LASER PULSES

作　　者：王兆华[1] 魏志义[1] 张杰[1] 

机构地区：[1]中国科学院物理研究所光物理实验室,北京100080

出　　处：《物理》2002年第10期659-666,共8页Physics

基　　金：国家自然科学基金 (批准号 :1982 5 110 ;698780 3 2 )资助项目 ;国家863计划资助项目

摘　　要：随着飞秒激光技术的发展 ,飞秒激光脉冲的准确测量已成为非常重要的研究内容 .文章在简要概述几种常见测量方法的基础上 ,着重综述了近年来发展起来的光学频率光栅开关法 (FROG)及自参考光谱位相相干电场重建法 (SPIDER) ,并介绍了文章作者进行的相关工作 .Recent progress in ultrafast laser technology has made it possible to generate pulses shorter than 2 cycles, so the accurate measurement of such pulses has become an important branch in ultrafast science. Based on the general description of the conventional autocorrelation method, we review the new developments in femtosecond laser diagnostics. In particular, two novel methods, frequency resolved optical gating(FROG) and spectral phase interferometry for direct electric field reconstruction(SPIDER), are described. Various measurements using FROG and SPIDER by our group are reported.

关 键 词：测量技术 飞秒脉冲 自相关 光谱相干 FROG SPIDER 激光 光学频率光栅开关法 自参考光谱位相相干电场重建法 

分 类 号：TN241[电子电信—物理电子学]