强激光场原子电离光电子轨迹干涉全息理论及应用  

Theory and application of photoelectron trajectory interference holography for atomic ionization in intense laser field

作　　者：陶建飞 夏勤智[2] 廖临谷 刘杰 刘小井 Tao Jian-Fei;Xia Qin-Zhi;Liao Lin-Gu;Liu Jie;Liu Xiao-Jing(Center for Transformative Science,ShanghaiTech University,Shanghai 201210,China;Institute of Applied Physics and Computational Mathematics,Beijing 100088,China;School of Physics,Peking University,Beijing 100871,China;Graduate School of China Academy of Engineering Physics,Beijing 100193,China)

机构地区：[1]上海科技大学大科学中心,上海201210 [2]北京应用物理与计算数学研究所,北京100088 [3]北京大学物理学院,北京100871 [4]中国工程物理研究院研究生院,北京100193

出　　处：《物理学报》2022年第23期37-48,共12页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:11574020,11775030,11974057);国家自然科学基金委员会-中国工程物理研究院联合基金(批准号:U1930403)资助的课题。

摘　　要：隧穿电子在外场的牵引下一个光周期以内返回核附近发生再散射现象是理解强场物理的基本物理图像.再散射电子与直接电离电子波函数发生干涉导致的所谓强场光电子全息在研究强场电离基本原理以及探测超快电子动力学上具有显著的优势.本文给出了量子轨迹干涉作为光电子全息基本物理背景的图像,合理地引入库仑势的效应,发展了一致性glory再散射理论.将此理论的计算结果与实验以及含时薛定谔方程做对比,得到了很好的定量符合结果.同时,研究了通过库仑glory再散射过程作为时间快门对超短光脉冲进行时间域重构的方法.对强场光电子全息的研究将加深对原子分子超快物理过程的认知,为未来利用或者操控这一过程做出重要贡献.The rescattering scenario that the ionized photoelectron is guided back to the vicinity of the atomic core under an oscillating laser field is the key to understanding strong field processes.Strong field photoelectron holography,which stems from the interference of direct and rescattering waves,has great potential applications in studying strong field physics and detecting ultrafast electron dynamics.The article develops the underlying quantum orbits interference picture.By including Coulomb potential,the uniform glory rescattering theory is introduced,which gives reasonably quantitative results in accord with time-dependent Schrödinger equation and experimental results.And reconstructing the ultrashort light pulses in the time domain with the Coulomb glory temporal gate is also studied.Deepening the understanding of strong field photoelectron holography will lead to further enlightening in ultrafast physics and contribute to future applications.

关 键 词：隧穿电离 光电子全息 库仑glory效应 双色激光场 

分 类 号：O56[理学—原子与分子物理] TN24[理学—物理]