摘要
建立了一台谐波频率分辨光学开关法 (FROG)飞秒脉冲测量装置 ,利用该装置进行了掺钛蓝宝石飞秒激光脉冲的测量研究 .在二次谐波自相关测得的时域和频域信号基础上 ,结合对信号光强度分布的计算机迭代处理 ,得到了有关飞秒激光电场、光谱及其相位的信息 ,所得脉宽与干涉测量的结果基本一致 .
We present a measurement of femtosecond laser pulses using the technique of second harmonic generation frequency-resolved optical gating (FROG) in this paper. Based on the data of the correlation signal in time and frequency domains, we obtained the detailed information on pulse shape, bandwidth, pulse duration and phase by using the retrieval algorithm program. The pulse duration is in reasonable agreement with the measurements using an interferometric autocorrelator.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
2003年第2期362-366,共5页
Acta Physica Sinica
基金
国家基础研究重大研究计划 (批准号 :G19990 75 2 0 2 -2 )
国家高技术惯性约束聚变主题资助的课题~~
