Terahertz radiation from atoms and molecules driven by two-color laser pulse

来源 :SFPUP 2014 International Workshop on Strong Field Physics an | 被引量 : 0次 | 上传用户:marquise
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  We study the generation of terahertz radiation from atoms and molecules driven by an ultrashort fundamental laser and its second harmonic field [1-8] by solving time-dependent Schr(o)dinger equation (TDSE).The comparisons of terahertz yields between one-, two-, and three-dimensional TDSE numerical simulations and electronic wave-packet dynamics show the wave-packets initial ionized states and subsequent acceleration in the laser field and rescattering with long-range Coulomb potential play key roles.We also present the dependences of the optimized phase delay and yield of terahertz radiation on the laser intensity, wavelength,duration, and the ratio of two-color laser components.The molecular alignment-dependent terahertz radiation yields are consistent with experiments [9] and their optimized two-color phase delays are less dependent on molecular alignment.
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杨骥川:1941年生于江苏宜兴。1965年毕业于北京首都医科大学医疗系,后于甘肃北京从事外科临床及医院管理工作25年。曾任北京首都医科大学附属复兴医院外科副主任副院长.1991