原子与分子物理学报2013，Vol.30Issue(4)：602-606,5.DOI:10.3969/j.issn.1000-0364.2013.04.015
通过控制量子路径得到孤立46阿秒脉冲
Generation of isolated 46 attosecond pulse via controlling quantum paths
摘要
Abstract
An efficient method to generate an isolated 46-as pulse by using the synthesized laser field is presented.Firstly,the laser field is synthesized by a two-color laser field and a low-frequency field.Secondly,we numerically solve one-dimensional time-dependent Schr(o)dingre equation of helium atom.The results show that not only the width of the plateau can be expanded,but also the short quantum is selected to efficiently contribute to the harmonics.Furthermore,the supercontinuum can be further broadened by adjusting the intensity of the low-frequency field.And by superposing a properly selected range from the 135th to 185th order in the continuous region,an isolated attosecond pulse with a duration of 46-as is obtained.关键词
低频场/高次谐波谱/平台区域Key words
low-frequency field/ high-order harmonic spectrum/ plateau分类
数理科学引用本文复制引用
吕婷婷,苗向阳..通过控制量子路径得到孤立46阿秒脉冲[J].原子与分子物理学报,2013,30(4):602-606,5.基金项目
国家自然科学基金(11047191) （11047191）
教育部科技研究重点项目(211025) （211025）
山西省青年科技研究基金(2009021005) （2009021005）
教育部高等学校博士学科点专项科研基金(新教师类)(20111404120004) （新教师类）
