论文部分内容阅读
对作者所提出的无干涉条纹直接电场重构测量飞秒脉冲的振幅和相位的新方法作出进一步理论分析,并通过实验测量说明该方法的优越性.该方法克服了传统的SPIDER方法的弊病,能得到一组无干涉条纹的图像,排除传统方法必须使用傅里叶变换滤波消除干涉条纹而引进的系统误差,使得该方法能够采用较简便设备且能较准确测量飞秒脉冲强度轮廓和相位.最后给出同一条件下新方法和传统SPIDER方法分别重构的脉冲强度自相关曲线与实验测量结果的比较,以说明新方法的有效性和优越性.
A further theoretical analysis of the new method of measuring the amplitude and phase of the femtosecond pulse by the direct electric field reconstruction without fringe fringes proposed by the author is given and the superiority of the method is illustrated through experimental measurements.This method overcomes the shortcomings of the traditional SPIDER method, A set of images without interference fringes can be obtained to eliminate the system error introduced by the traditional method that the interference fringes must be eliminated by using the Fourier transform filtering so that the method can measure the femtosecond pulse intensity profile and the phase more accurately with simpler equipment. Finally, the comparison between the pulse intensity autocorrelation curves reconstructed by the new method and the traditional SPIDER method under the same condition and the experimental measurement results is given. Finally, the effectiveness and superiority of the new method are illustrated.