Extension of high-order harmonics and generation of an isolated attosecond pulse in the chirped laser field     

伍杰  翟振  刘学深 《海洋学报(英文版)》2010,29(9)

This paper theoretically investigates the high-order harmonic generation cutoff extension using intense few-cycle linearly chirped laser pulses. It shows that the cutoff of the harmonic can be extended remarkably by optimising the chirping parameters. The time-frequency characteristics of high-order harmonics with different chirping parameters are analysed by means of wavelet transform of the dipole acceleration. It also gives out the classical three-step model pictures of electron. By superposing a properly selected range of the harmonic spectrum, it obtains an isolated 65as pulse.  相似文献   

GIS在救灾物资运输中的应用   总被引：1，自引：0，他引：1  

翟振  黄兴  管宏业  孙鑫 《地理空间信息》2009,7(3):124-126

介绍了利用经典的Dijkstra最短路径算法设计物资的调运方案，根据气象预报及历史经验，决定提前做好某种防洪抗涝物资的储备的方法，阐述了Dijkstra算法的改进步骤。  相似文献   

基于Dijkstra算法的车辆导航系统路线优化技术     

翟振  孙鑫  李志锋 《测绘科学》2008,(Z1)

利用经典的Dijkstra最短路径算法设计智能车辆的导航系统(通信技术模块,车辆定位技术模块,搜索技术模块,检测加车位满空技术模块),实现目的地路线优化,方便车主的外出。  相似文献